Home / 129,277.92-178,417.56-75,581.04

Finding the Fourth Proportional to 129,277.92, 178,417.56 and 75,581.04

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Solution

The fourth proportional to 129,277.92, 178,417.56 and 75,581.04 is: 104,310.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,277.92 : 178,417.56 = 75,581.04 : x
  2. Step 2: Convert to fraction form
    129,277.92/178,417.56 = 75,581.04/x
  3. Step 3: Cross multiply
    129,277.92x = 178,417.56 × 75,581.04
  4. Step 4: Simplify right side
    129,277.92x = 13,484,984,739.06
  5. Step 5: Solve for x
    x = 13,484,984,739.06/129,277.92
  6. Step 6: Final answer
    x = 104,310.04

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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.