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Finding the Fourth Proportional to 95,138.40, 142,610.40 and 55,675.20

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Solution

The fourth proportional to 95,138.40, 142,610.40 and 55,675.20 is: 83,455.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,138.40 : 142,610.40 = 55,675.20 : x
  2. Step 2: Convert to fraction form
    95,138.40/142,610.40 = 55,675.20/x
  3. Step 3: Cross multiply
    95,138.40x = 142,610.40 × 55,675.20
  4. Step 4: Simplify right side
    95,138.40x = 7,939,862,542.08
  5. Step 5: Solve for x
    x = 7,939,862,542.08/95,138.40
  6. Step 6: Final answer
    x = 83,455.92

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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.