Home / 143,685.20-215,527.67-67,766.03

Finding the Fourth Proportional to 143,685.20, 215,527.67 and 67,766.03

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Solution

The fourth proportional to 143,685.20, 215,527.67 and 67,766.03 is: 101,648.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,685.20 : 215,527.67 = 67,766.03 : x
  2. Step 2: Convert to fraction form
    143,685.20/215,527.67 = 67,766.03/x
  3. Step 3: Cross multiply
    143,685.20x = 215,527.67 × 67,766.03
  4. Step 4: Simplify right side
    143,685.20x = 14,605,453,134.58
  5. Step 5: Solve for x
    x = 14,605,453,134.58/143,685.20
  6. Step 6: Final answer
    x = 101,648.97

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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.