Home / 131,989.38-182,143.44-71,558.88

Finding the Fourth Proportional to 131,989.38, 182,143.44 and 71,558.88

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Solution

The fourth proportional to 131,989.38, 182,143.44 and 71,558.88 is: 98,750.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,989.38 : 182,143.44 = 71,558.88 : x
  2. Step 2: Convert to fraction form
    131,989.38/182,143.44 = 71,558.88/x
  3. Step 3: Cross multiply
    131,989.38x = 182,143.44 × 71,558.88
  4. Step 4: Simplify right side
    131,989.38x = 13,033,980,565.75
  5. Step 5: Solve for x
    x = 13,033,980,565.75/131,989.38
  6. Step 6: Final answer
    x = 98,750.22

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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.