Home / 131,631.30-197,446.95-103,637.70

Finding the Fourth Proportional to 131,631.30, 197,446.95 and 103,637.70

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Solution

The fourth proportional to 131,631.30, 197,446.95 and 103,637.70 is: 155,456.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,631.30 : 197,446.95 = 103,637.70 : x
  2. Step 2: Convert to fraction form
    131,631.30/197,446.95 = 103,637.70/x
  3. Step 3: Cross multiply
    131,631.30x = 197,446.95 × 103,637.70
  4. Step 4: Simplify right side
    131,631.30x = 20,462,947,770.02
  5. Step 5: Solve for x
    x = 20,462,947,770.02/131,631.30
  6. Step 6: Final answer
    x = 155,456.55

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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.