Home / 144,729.84-199,824.65-90,364.79

Finding the Fourth Proportional to 144,729.84, 199,824.65 and 90,364.79

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Solution

The fourth proportional to 144,729.84, 199,824.65 and 90,364.79 is: 124,764.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,729.84 : 199,824.65 = 90,364.79 : x
  2. Step 2: Convert to fraction form
    144,729.84/199,824.65 = 90,364.79/x
  3. Step 3: Cross multiply
    144,729.84x = 199,824.65 × 90,364.79
  4. Step 4: Simplify right side
    144,729.84x = 18,057,112,534.07
  5. Step 5: Solve for x
    x = 18,057,112,534.07/144,729.84
  6. Step 6: Final answer
    x = 124,764.27

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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.