Home / 148,129.18-204,205.62-105,613.90

Finding the Fourth Proportional to 148,129.18, 204,205.62 and 105,613.90

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Solution

The fourth proportional to 148,129.18, 204,205.62 and 105,613.90 is: 145,595.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,129.18 : 204,205.62 = 105,613.90 : x
  2. Step 2: Convert to fraction form
    148,129.18/204,205.62 = 105,613.90/x
  3. Step 3: Cross multiply
    148,129.18x = 204,205.62 × 105,613.90
  4. Step 4: Simplify right side
    148,129.18x = 21,566,951,930.12
  5. Step 5: Solve for x
    x = 21,566,951,930.12/148,129.18
  6. Step 6: Final answer
    x = 145,595.57

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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.