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Finding the Fourth Proportional to 112,306.60, 168,459.90 and 45,724.60

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Solution

The fourth proportional to 112,306.60, 168,459.90 and 45,724.60 is: 68,586.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,306.60 : 168,459.90 = 45,724.60 : x
  2. Step 2: Convert to fraction form
    112,306.60/168,459.90 = 45,724.60/x
  3. Step 3: Cross multiply
    112,306.60x = 168,459.90 × 45,724.60
  4. Step 4: Simplify right side
    112,306.60x = 7,702,761,543.54
  5. Step 5: Solve for x
    x = 7,702,761,543.54/112,306.60
  6. Step 6: Final answer
    x = 68,586.90

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