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Finding the Fourth Proportional to 181,569.60, 272,008.80 and 107,611.20

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Solution

The fourth proportional to 181,569.60, 272,008.80 and 107,611.20 is: 161,211.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,569.60 : 272,008.80 = 107,611.20 : x
  2. Step 2: Convert to fraction form
    181,569.60/272,008.80 = 107,611.20/x
  3. Step 3: Cross multiply
    181,569.60x = 272,008.80 × 107,611.20
  4. Step 4: Simplify right side
    181,569.60x = 29,271,193,378.56
  5. Step 5: Solve for x
    x = 29,271,193,378.56/181,569.60
  6. Step 6: Final answer
    x = 161,211.97

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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.