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Finding the Fourth Proportional to 162,445.96, 243,672.99 and 77,036.73

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Solution

The fourth proportional to 162,445.96, 243,672.99 and 77,036.73 is: 115,557.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,445.96 : 243,672.99 = 77,036.73 : x
  2. Step 2: Convert to fraction form
    162,445.96/243,672.99 = 77,036.73/x
  3. Step 3: Cross multiply
    162,445.96x = 243,672.99 × 77,036.73
  4. Step 4: Simplify right side
    162,445.96x = 18,771,770,338.92
  5. Step 5: Solve for x
    x = 18,771,770,338.92/162,445.96
  6. Step 6: Final answer
    x = 115,557.02

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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.