Home / 129,550.92-178,793.02-75,832.68

Finding the Fourth Proportional to 129,550.92, 178,793.02 and 75,832.68

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Solution

The fourth proportional to 129,550.92, 178,793.02 and 75,832.68 is: 104,656.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,550.92 : 178,793.02 = 75,832.68 : x
  2. Step 2: Convert to fraction form
    129,550.92/178,793.02 = 75,832.68/x
  3. Step 3: Cross multiply
    129,550.92x = 178,793.02 × 75,832.68
  4. Step 4: Simplify right side
    129,550.92x = 13,558,353,871.89
  5. Step 5: Solve for x
    x = 13,558,353,871.89/129,550.92
  6. Step 6: Final answer
    x = 104,656.56

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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.