Home / 129,372.27-178,468.41-75,622.17

Finding the Fourth Proportional to 129,372.27, 178,468.41 and 75,622.17

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Solution

The fourth proportional to 129,372.27, 178,468.41 and 75,622.17 is: 104,320.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,372.27 : 178,468.41 = 75,622.17 : x
  2. Step 2: Convert to fraction form
    129,372.27/178,468.41 = 75,622.17/x
  3. Step 3: Cross multiply
    129,372.27x = 178,468.41 × 75,622.17
  4. Step 4: Simplify right side
    129,372.27x = 13,496,168,440.65
  5. Step 5: Solve for x
    x = 13,496,168,440.65/129,372.27
  6. Step 6: Final answer
    x = 104,320.41

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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.