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Finding the Fourth Proportional to 131,373.80, 181,285.52 and 74,010

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Solution

The fourth proportional to 131,373.80, 181,285.52 and 74,010 is: 102,127.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,373.80 : 181,285.52 = 74,010 : x
  2. Step 2: Convert to fraction form
    131,373.80/181,285.52 = 74,010/x
  3. Step 3: Cross multiply
    131,373.80x = 181,285.52 × 74,010
  4. Step 4: Simplify right side
    131,373.80x = 13,416,940,965.15
  5. Step 5: Solve for x
    x = 13,416,940,965.15/131,373.80
  6. Step 6: Final answer
    x = 102,127.98

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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.