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Finding the Fourth Proportional to 143,695.30, 215,542.95 and 143,695.30

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Solution

The fourth proportional to 143,695.30, 215,542.95 and 143,695.30 is: 215,542.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,695.30 : 215,542.95 = 143,695.30 : x
  2. Step 2: Convert to fraction form
    143,695.30/215,542.95 = 143,695.30/x
  3. Step 3: Cross multiply
    143,695.30x = 215,542.95 × 143,695.30
  4. Step 4: Simplify right side
    143,695.30x = 30,972,508,863.14
  5. Step 5: Solve for x
    x = 30,972,508,863.14/143,695.30
  6. Step 6: Final answer
    x = 215,542.95

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