Home / 131,177.68-196,766.51-72,387.02

Finding the Fourth Proportional to 131,177.68, 196,766.51 and 72,387.02

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Solution

The fourth proportional to 131,177.68, 196,766.51 and 72,387.02 is: 108,580.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,177.68 : 196,766.51 = 72,387.02 : x
  2. Step 2: Convert to fraction form
    131,177.68/196,766.51 = 72,387.02/x
  3. Step 3: Cross multiply
    131,177.68x = 196,766.51 × 72,387.02
  4. Step 4: Simplify right side
    131,177.68x = 14,243,340,521.46
  5. Step 5: Solve for x
    x = 14,243,340,521.46/131,177.68
  6. Step 6: Final answer
    x = 108,580.52

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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.