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Finding the Fourth Proportional to 132,808.30, 183,270.80 and 72,377.73

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Solution

The fourth proportional to 132,808.30, 183,270.80 and 72,377.73 is: 99,878.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,808.30 : 183,270.80 = 72,377.73 : x
  2. Step 2: Convert to fraction form
    132,808.30/183,270.80 = 72,377.73/x
  3. Step 3: Cross multiply
    132,808.30x = 183,270.80 × 72,377.73
  4. Step 4: Simplify right side
    132,808.30x = 13,264,724,144.78
  5. Step 5: Solve for x
    x = 13,264,724,144.78/132,808.30
  6. Step 6: Final answer
    x = 99,878.73

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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.