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Finding the Fourth Proportional to 130,472.16, 195,459.90 and 74,350.92

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Solution

The fourth proportional to 130,472.16, 195,459.90 and 74,350.92 is: 111,384.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,472.16 : 195,459.90 = 74,350.92 : x
  2. Step 2: Convert to fraction form
    130,472.16/195,459.90 = 74,350.92/x
  3. Step 3: Cross multiply
    130,472.16x = 195,459.90 × 74,350.92
  4. Step 4: Simplify right side
    130,472.16x = 14,532,623,388.11
  5. Step 5: Solve for x
    x = 14,532,623,388.11/130,472.16
  6. Step 6: Final answer
    x = 111,384.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.