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Finding the Fourth Proportional to 125,040, 172,553.76 and 67,678.02

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Solution

The fourth proportional to 125,040, 172,553.76 and 67,678.02 is: 93,394.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,040 : 172,553.76 = 67,678.02 : x
  2. Step 2: Convert to fraction form
    125,040/172,553.76 = 67,678.02/x
  3. Step 3: Cross multiply
    125,040x = 172,553.76 × 67,678.02
  4. Step 4: Simplify right side
    125,040x = 11,678,096,820.36
  5. Step 5: Solve for x
    x = 11,678,096,820.36/125,040
  6. Step 6: Final answer
    x = 93,394.89

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