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Finding the Fourth Proportional to 143,366, 213,659.98 and 135,901.04

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Solution

The fourth proportional to 143,366, 213,659.98 and 135,901.04 is: 202,534.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,366 : 213,659.98 = 135,901.04 : x
  2. Step 2: Convert to fraction form
    143,366/213,659.98 = 135,901.04/x
  3. Step 3: Cross multiply
    143,366x = 213,659.98 × 135,901.04
  4. Step 4: Simplify right side
    143,366x = 29,036,613,488.38
  5. Step 5: Solve for x
    x = 29,036,613,488.38/143,366
  6. Step 6: Final answer
    x = 202,534.87

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.