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Finding the Fourth Proportional to 161,225.60, 241,723.20 and 72,406.40

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Solution

The fourth proportional to 161,225.60, 241,723.20 and 72,406.40 is: 108,557.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,225.60 : 241,723.20 = 72,406.40 : x
  2. Step 2: Convert to fraction form
    161,225.60/241,723.20 = 72,406.40/x
  3. Step 3: Cross multiply
    161,225.60x = 241,723.20 × 72,406.40
  4. Step 4: Simplify right side
    161,225.60x = 17,502,306,708.48
  5. Step 5: Solve for x
    x = 17,502,306,708.48/161,225.60
  6. Step 6: Final answer
    x = 108,557.86

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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.