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Finding the Fourth Proportional to 143,703.29, 215,565.87 and 48,904.13

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Solution

The fourth proportional to 143,703.29, 215,565.87 and 48,904.13 is: 73,359.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,703.29 : 215,565.87 = 48,904.13 : x
  2. Step 2: Convert to fraction form
    143,703.29/215,565.87 = 48,904.13/x
  3. Step 3: Cross multiply
    143,703.29x = 215,565.87 × 48,904.13
  4. Step 4: Simplify right side
    143,703.29x = 10,542,061,330.04
  5. Step 5: Solve for x
    x = 10,542,061,330.04/143,703.29
  6. Step 6: Final answer
    x = 73,359.92

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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.