Home / 115,331.15-159,153.38-67,616.28

Finding the Fourth Proportional to 115,331.15, 159,153.38 and 67,616.28

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Solution

The fourth proportional to 115,331.15, 159,153.38 and 67,616.28 is: 93,308.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,331.15 : 159,153.38 = 67,616.28 : x
  2. Step 2: Convert to fraction form
    115,331.15/159,153.38 = 67,616.28/x
  3. Step 3: Cross multiply
    115,331.15x = 159,153.38 × 67,616.28
  4. Step 4: Simplify right side
    115,331.15x = 10,761,358,371.18
  5. Step 5: Solve for x
    x = 10,761,358,371.18/115,331.15
  6. Step 6: Final answer
    x = 93,308.34

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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.