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Finding the Fourth Proportional to 101,525.40, 152,312.40 and 51,613.20

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Solution

The fourth proportional to 101,525.40, 152,312.40 and 51,613.20 is: 77,432.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,525.40 : 152,312.40 = 51,613.20 : x
  2. Step 2: Convert to fraction form
    101,525.40/152,312.40 = 51,613.20/x
  3. Step 3: Cross multiply
    101,525.40x = 152,312.40 × 51,613.20
  4. Step 4: Simplify right side
    101,525.40x = 7,861,330,363.68
  5. Step 5: Solve for x
    x = 7,861,330,363.68/101,525.40
  6. Step 6: Final answer
    x = 77,432.15

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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.