Home / 115,829.20-159,862.44-83,986.48

Finding the Fourth Proportional to 115,829.20, 159,862.44 and 83,986.48

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Solution

The fourth proportional to 115,829.20, 159,862.44 and 83,986.48 is: 115,914.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,829.20 : 159,862.44 = 83,986.48 : x
  2. Step 2: Convert to fraction form
    115,829.20/159,862.44 = 83,986.48/x
  3. Step 3: Cross multiply
    115,829.20x = 159,862.44 × 83,986.48
  4. Step 4: Simplify right side
    115,829.20x = 13,426,283,619.81
  5. Step 5: Solve for x
    x = 13,426,283,619.81/115,829.20
  6. Step 6: Final answer
    x = 115,914.50

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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.