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Finding the Fourth Proportional to 131,395.41, 181,107.90 and 93,105.90

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Solution

The fourth proportional to 131,395.41, 181,107.90 and 93,105.90 is: 128,331.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,395.41 : 181,107.90 = 93,105.90 : x
  2. Step 2: Convert to fraction form
    131,395.41/181,107.90 = 93,105.90/x
  3. Step 3: Cross multiply
    131,395.41x = 181,107.90 × 93,105.90
  4. Step 4: Simplify right side
    131,395.41x = 16,862,214,026.61
  5. Step 5: Solve for x
    x = 16,862,214,026.61/131,395.41
  6. Step 6: Final answer
    x = 128,331.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.