Home / 131,184.10-196,711.45-55,268.78

Finding the Fourth Proportional to 131,184.10, 196,711.45 and 55,268.78

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Solution

The fourth proportional to 131,184.10, 196,711.45 and 55,268.78 is: 82,875.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,184.10 : 196,711.45 = 55,268.78 : x
  2. Step 2: Convert to fraction form
    131,184.10/196,711.45 = 55,268.78/x
  3. Step 3: Cross multiply
    131,184.10x = 196,711.45 × 55,268.78
  4. Step 4: Simplify right side
    131,184.10x = 10,872,000,731.80
  5. Step 5: Solve for x
    x = 10,872,000,731.80/131,184.10
  6. Step 6: Final answer
    x = 82,875.90

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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.