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Finding the Fourth Proportional to 181,808.60, 272,712.90 and 125,821.40

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Solution

The fourth proportional to 181,808.60, 272,712.90 and 125,821.40 is: 188,732.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,808.60 : 272,712.90 = 125,821.40 : x
  2. Step 2: Convert to fraction form
    181,808.60/272,712.90 = 125,821.40/x
  3. Step 3: Cross multiply
    181,808.60x = 272,712.90 × 125,821.40
  4. Step 4: Simplify right side
    181,808.60x = 34,313,118,876.06
  5. Step 5: Solve for x
    x = 34,313,118,876.06/181,808.60
  6. Step 6: Final answer
    x = 188,732.10

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Why These Related Problems?

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