Home / 102,542.12-153,829.62-43,394.72

Finding the Fourth Proportional to 102,542.12, 153,829.62 and 43,394.72

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Solution

The fourth proportional to 102,542.12, 153,829.62 and 43,394.72 is: 65,099.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,542.12 : 153,829.62 = 43,394.72 : x
  2. Step 2: Convert to fraction form
    102,542.12/153,829.62 = 43,394.72/x
  3. Step 3: Cross multiply
    102,542.12x = 153,829.62 × 43,394.72
  4. Step 4: Simplify right side
    102,542.12x = 6,675,393,287.61
  5. Step 5: Solve for x
    x = 6,675,393,287.61/102,542.12
  6. Step 6: Final answer
    x = 65,099.04

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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.