Home / 129,532.04-178,747.08-71,377.32

Finding the Fourth Proportional to 129,532.04, 178,747.08 and 71,377.32

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Solution

The fourth proportional to 129,532.04, 178,747.08 and 71,377.32 is: 98,496.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,532.04 : 178,747.08 = 71,377.32 : x
  2. Step 2: Convert to fraction form
    129,532.04/178,747.08 = 71,377.32/x
  3. Step 3: Cross multiply
    129,532.04x = 178,747.08 × 71,377.32
  4. Step 4: Simplify right side
    129,532.04x = 12,758,487,126.16
  5. Step 5: Solve for x
    x = 12,758,487,126.16/129,532.04
  6. Step 6: Final answer
    x = 98,496.77

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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.