Home / 102,391.92-153,497.52-40,018.80

Finding the Fourth Proportional to 102,391.92, 153,497.52 and 40,018.80

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Solution

The fourth proportional to 102,391.92, 153,497.52 and 40,018.80 is: 59,992.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,391.92 : 153,497.52 = 40,018.80 : x
  2. Step 2: Convert to fraction form
    102,391.92/153,497.52 = 40,018.80/x
  3. Step 3: Cross multiply
    102,391.92x = 153,497.52 × 40,018.80
  4. Step 4: Simplify right side
    102,391.92x = 6,142,786,553.38
  5. Step 5: Solve for x
    x = 6,142,786,553.38/102,391.92
  6. Step 6: Final answer
    x = 59,992.88

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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.