Home / 103,112,571.35-142,670,054.49-89,909,261.21

Finding the Fourth Proportional to 103,112,571.35, 142,670,054.49 and 89,909,261.21

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Solution

The fourth proportional to 103,112,571.35, 142,670,054.49 and 89,909,261.21 is: 124,401,506.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,112,571.35 : 142,670,054.49 = 89,909,261.21 : x
  2. Step 2: Convert to fraction form
    103,112,571.35/142,670,054.49 = 89,909,261.21/x
  3. Step 3: Cross multiply
    103,112,571.35x = 142,670,054.49 × 89,909,261.21
  4. Step 4: Simplify right side
    103,112,571.35x = 12,827,359,195,986,344
  5. Step 5: Solve for x
    x = 12,827,359,195,986,344/103,112,571.35
  6. Step 6: Final answer
    x = 124,401,506.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.