Home / 96,178.72-132,776.40-66,318.88

Finding the Fourth Proportional to 96,178.72, 132,776.40 and 66,318.88

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Solution

The fourth proportional to 96,178.72, 132,776.40 and 66,318.88 is: 91,554.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,178.72 : 132,776.40 = 66,318.88 : x
  2. Step 2: Convert to fraction form
    96,178.72/132,776.40 = 66,318.88/x
  3. Step 3: Cross multiply
    96,178.72x = 132,776.40 × 66,318.88
  4. Step 4: Simplify right side
    96,178.72x = 8,805,582,138.43
  5. Step 5: Solve for x
    x = 8,805,582,138.43/96,178.72
  6. Step 6: Final answer
    x = 91,554.37

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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.