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Finding the Fourth Proportional to 178,001.94, 267,045.76 and 72,821.20

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Solution

The fourth proportional to 178,001.94, 267,045.76 and 72,821.20 is: 109,249.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,001.94 : 267,045.76 = 72,821.20 : x
  2. Step 2: Convert to fraction form
    178,001.94/267,045.76 = 72,821.20/x
  3. Step 3: Cross multiply
    178,001.94x = 267,045.76 × 72,821.20
  4. Step 4: Simplify right side
    178,001.94x = 19,446,592,698.11
  5. Step 5: Solve for x
    x = 19,446,592,698.11/178,001.94
  6. Step 6: Final answer
    x = 109,249.33

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.