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Finding the Fourth Proportional to 146,773.60, 220,160.40 and 76,636.60

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Solution

The fourth proportional to 146,773.60, 220,160.40 and 76,636.60 is: 114,954.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,773.60 : 220,160.40 = 76,636.60 : x
  2. Step 2: Convert to fraction form
    146,773.60/220,160.40 = 76,636.60/x
  3. Step 3: Cross multiply
    146,773.60x = 220,160.40 × 76,636.60
  4. Step 4: Simplify right side
    146,773.60x = 16,872,344,510.64
  5. Step 5: Solve for x
    x = 16,872,344,510.64/146,773.60
  6. Step 6: Final answer
    x = 114,954.90

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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.