Home / 131,505.62-197,323.23-81,572.90

Finding the Fourth Proportional to 131,505.62, 197,323.23 and 81,572.90

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Solution

The fourth proportional to 131,505.62, 197,323.23 and 81,572.90 is: 122,399.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,505.62 : 197,323.23 = 81,572.90 : x
  2. Step 2: Convert to fraction form
    131,505.62/197,323.23 = 81,572.90/x
  3. Step 3: Cross multiply
    131,505.62x = 197,323.23 × 81,572.90
  4. Step 4: Simplify right side
    131,505.62x = 16,096,228,108.47
  5. Step 5: Solve for x
    x = 16,096,228,108.47/131,505.62
  6. Step 6: Final answer
    x = 122,399.55

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1.5x scale

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.