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Finding the Fourth Proportional to 162,243.39, 243,517.70 and 82,338.71

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Solution

The fourth proportional to 162,243.39, 243,517.70 and 82,338.71 is: 123,585.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,243.39 : 243,517.70 = 82,338.71 : x
  2. Step 2: Convert to fraction form
    162,243.39/243,517.70 = 82,338.71/x
  3. Step 3: Cross multiply
    162,243.39x = 243,517.70 × 82,338.71
  4. Step 4: Simplify right side
    162,243.39x = 20,050,934,094.81
  5. Step 5: Solve for x
    x = 20,050,934,094.81/162,243.39
  6. Step 6: Final answer
    x = 123,585.52

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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.