Home / 131,532.60-197,153.10-72,410.70

Finding the Fourth Proportional to 131,532.60, 197,153.10 and 72,410.70

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Solution

The fourth proportional to 131,532.60, 197,153.10 and 72,410.70 is: 108,535.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,532.60 : 197,153.10 = 72,410.70 : x
  2. Step 2: Convert to fraction form
    131,532.60/197,153.10 = 72,410.70/x
  3. Step 3: Cross multiply
    131,532.60x = 197,153.10 × 72,410.70
  4. Step 4: Simplify right side
    131,532.60x = 14,275,993,978.17
  5. Step 5: Solve for x
    x = 14,275,993,978.17/131,532.60
  6. Step 6: Final answer
    x = 108,535.78

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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.