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Finding the Fourth Proportional to 181,774.80, 272,662.20 and 125,787.60

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Solution

The fourth proportional to 181,774.80, 272,662.20 and 125,787.60 is: 188,681.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,774.80 : 272,662.20 = 125,787.60 : x
  2. Step 2: Convert to fraction form
    181,774.80/272,662.20 = 125,787.60/x
  3. Step 3: Cross multiply
    181,774.80x = 272,662.20 × 125,787.60
  4. Step 4: Simplify right side
    181,774.80x = 34,297,523,748.72
  5. Step 5: Solve for x
    x = 34,297,523,748.72/181,774.80
  6. Step 6: Final answer
    x = 188,681.40

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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.