Home / 162,143.20-243,215.61-73,292.68

Finding the Fourth Proportional to 162,143.20, 243,215.61 and 73,292.68

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Solution

The fourth proportional to 162,143.20, 243,215.61 and 73,292.68 is: 109,939.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,143.20 : 243,215.61 = 73,292.68 : x
  2. Step 2: Convert to fraction form
    162,143.20/243,215.61 = 73,292.68/x
  3. Step 3: Cross multiply
    162,143.20x = 243,215.61 × 73,292.68
  4. Step 4: Simplify right side
    162,143.20x = 17,825,923,874.73
  5. Step 5: Solve for x
    x = 17,825,923,874.73/162,143.20
  6. Step 6: Final answer
    x = 109,939.39

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1.5x scale

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.