Home / 147,965.40-221,948.10-84,761.10

Finding the Fourth Proportional to 147,965.40, 221,948.10 and 84,761.10

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Solution

The fourth proportional to 147,965.40, 221,948.10 and 84,761.10 is: 127,141.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,965.40 : 221,948.10 = 84,761.10 : x
  2. Step 2: Convert to fraction form
    147,965.40/221,948.10 = 84,761.10/x
  3. Step 3: Cross multiply
    147,965.40x = 221,948.10 × 84,761.10
  4. Step 4: Simplify right side
    147,965.40x = 18,812,565,098.91
  5. Step 5: Solve for x
    x = 18,812,565,098.91/147,965.40
  6. Step 6: Final answer
    x = 127,141.65

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.