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Finding the Fourth Proportional to 162,522.70, 243,686.85 and 83,790.70

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Solution

The fourth proportional to 162,522.70, 243,686.85 and 83,790.70 is: 125,635.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,522.70 : 243,686.85 = 83,790.70 : x
  2. Step 2: Convert to fraction form
    162,522.70/243,686.85 = 83,790.70/x
  3. Step 3: Cross multiply
    162,522.70x = 243,686.85 × 83,790.70
  4. Step 4: Simplify right side
    162,522.70x = 20,418,691,742.30
  5. Step 5: Solve for x
    x = 20,418,691,742.30/162,522.70
  6. Step 6: Final answer
    x = 125,635.94

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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.