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Finding the Fourth Proportional to 148,355.55, 204,730.40 and 80,374.24

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Solution

The fourth proportional to 148,355.55, 204,730.40 and 80,374.24 is: 110,916.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,355.55 : 204,730.40 = 80,374.24 : x
  2. Step 2: Convert to fraction form
    148,355.55/204,730.40 = 80,374.24/x
  3. Step 3: Cross multiply
    148,355.55x = 204,730.40 × 80,374.24
  4. Step 4: Simplify right side
    148,355.55x = 16,455,050,304.90
  5. Step 5: Solve for x
    x = 16,455,050,304.90/148,355.55
  6. Step 6: Final answer
    x = 110,916.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.