Home / 131,777.87-181,853.18-71,348.55

Finding the Fourth Proportional to 131,777.87, 181,853.18 and 71,348.55

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Solution

The fourth proportional to 131,777.87, 181,853.18 and 71,348.55 is: 98,460.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,777.87 : 181,853.18 = 71,348.55 : x
  2. Step 2: Convert to fraction form
    131,777.87/181,853.18 = 71,348.55/x
  3. Step 3: Cross multiply
    131,777.87x = 181,853.18 × 71,348.55
  4. Step 4: Simplify right side
    131,777.87x = 12,974,960,349.15
  5. Step 5: Solve for x
    x = 12,974,960,349.15/131,777.87
  6. Step 6: Final answer
    x = 98,460.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.