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Finding the Fourth Proportional to 130,572.96, 180,245.78 and 88,188.88

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Solution

The fourth proportional to 130,572.96, 180,245.78 and 88,188.88 is: 121,737.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,572.96 : 180,245.78 = 88,188.88 : x
  2. Step 2: Convert to fraction form
    130,572.96/180,245.78 = 88,188.88/x
  3. Step 3: Cross multiply
    130,572.96x = 180,245.78 × 88,188.88
  4. Step 4: Simplify right side
    130,572.96x = 15,895,673,462.93
  5. Step 5: Solve for x
    x = 15,895,673,462.93/130,572.96
  6. Step 6: Final answer
    x = 121,737.87

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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.