Home / 115,331.40-159,153.72-67,616.53

Finding the Fourth Proportional to 115,331.40, 159,153.72 and 67,616.53

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Solution

The fourth proportional to 115,331.40, 159,153.72 and 67,616.53 is: 93,308.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,331.40 : 159,153.72 = 67,616.53 : x
  2. Step 2: Convert to fraction form
    115,331.40/159,153.72 = 67,616.53/x
  3. Step 3: Cross multiply
    115,331.40x = 159,153.72 × 67,616.53
  4. Step 4: Simplify right side
    115,331.40x = 10,761,421,487.22
  5. Step 5: Solve for x
    x = 10,761,421,487.22/115,331.40
  6. Step 6: Final answer
    x = 93,308.69

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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.