Home / 115,331.28-159,153.54-67,616.40

Finding the Fourth Proportional to 115,331.28, 159,153.54 and 67,616.40

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Solution

The fourth proportional to 115,331.28, 159,153.54 and 67,616.40 is: 93,308.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,331.28 : 159,153.54 = 67,616.40 : x
  2. Step 2: Convert to fraction form
    115,331.28/159,153.54 = 67,616.40/x
  3. Step 3: Cross multiply
    115,331.28x = 159,153.54 × 67,616.40
  4. Step 4: Simplify right side
    115,331.28x = 10,761,389,422.06
  5. Step 5: Solve for x
    x = 10,761,389,422.06/115,331.28
  6. Step 6: Final answer
    x = 93,308.51

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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.