Home / 131,993.28-182,077.20-78,226.56

Finding the Fourth Proportional to 131,993.28, 182,077.20 and 78,226.56

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Solution

The fourth proportional to 131,993.28, 182,077.20 and 78,226.56 is: 107,909.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,993.28 : 182,077.20 = 78,226.56 : x
  2. Step 2: Convert to fraction form
    131,993.28/182,077.20 = 78,226.56/x
  3. Step 3: Cross multiply
    131,993.28x = 182,077.20 × 78,226.56
  4. Step 4: Simplify right side
    131,993.28x = 14,243,273,010.43
  5. Step 5: Solve for x
    x = 14,243,273,010.43/131,993.28
  6. Step 6: Final answer
    x = 107,909.08

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1.5x scale

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.