Home / 103,186.59-142,417.92-66,932.97

Finding the Fourth Proportional to 103,186.59, 142,417.92 and 66,932.97

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Solution

The fourth proportional to 103,186.59, 142,417.92 and 66,932.97 is: 92,380.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,186.59 : 142,417.92 = 66,932.97 : x
  2. Step 2: Convert to fraction form
    103,186.59/142,417.92 = 66,932.97/x
  3. Step 3: Cross multiply
    103,186.59x = 142,417.92 × 66,932.97
  4. Step 4: Simplify right side
    103,186.59x = 9,532,454,366.82
  5. Step 5: Solve for x
    x = 9,532,454,366.82/103,186.59
  6. Step 6: Final answer
    x = 92,380.75

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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.