Home / 143,620.29-215,444.71-54,948.38

Finding the Fourth Proportional to 143,620.29, 215,444.71 and 54,948.38

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Solution

The fourth proportional to 143,620.29, 215,444.71 and 54,948.38 is: 82,428.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,620.29 : 215,444.71 = 54,948.38 : x
  2. Step 2: Convert to fraction form
    143,620.29/215,444.71 = 54,948.38/x
  3. Step 3: Cross multiply
    143,620.29x = 215,444.71 × 54,948.38
  4. Step 4: Simplify right side
    143,620.29x = 11,838,336,785.53
  5. Step 5: Solve for x
    x = 11,838,336,785.53/143,620.29
  6. Step 6: Final answer
    x = 82,428.02

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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.