Home / 129,572.30-178,748.67-75,824.34

Finding the Fourth Proportional to 129,572.30, 178,748.67 and 75,824.34

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Solution

The fourth proportional to 129,572.30, 178,748.67 and 75,824.34 is: 104,601.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,572.30 : 178,748.67 = 75,824.34 : x
  2. Step 2: Convert to fraction form
    129,572.30/178,748.67 = 75,824.34/x
  3. Step 3: Cross multiply
    129,572.30x = 178,748.67 × 75,824.34
  4. Step 4: Simplify right side
    129,572.30x = 13,553,499,928.63
  5. Step 5: Solve for x
    x = 13,553,499,928.63/129,572.30
  6. Step 6: Final answer
    x = 104,601.83

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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.