Home / 143,972.67-215,790.87-108,319.46

Finding the Fourth Proportional to 143,972.67, 215,790.87 and 108,319.46

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Solution

The fourth proportional to 143,972.67, 215,790.87 and 108,319.46 is: 162,352.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,972.67 : 215,790.87 = 108,319.46 : x
  2. Step 2: Convert to fraction form
    143,972.67/215,790.87 = 108,319.46/x
  3. Step 3: Cross multiply
    143,972.67x = 215,790.87 × 108,319.46
  4. Step 4: Simplify right side
    143,972.67x = 23,374,349,432.38
  5. Step 5: Solve for x
    x = 23,374,349,432.38/143,972.67
  6. Step 6: Final answer
    x = 162,352.68

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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.