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Finding the Fourth Proportional to 162,756.64, 243,937.84 and 69,065.56

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Solution

The fourth proportional to 162,756.64, 243,937.84 and 69,065.56 is: 103,514.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,756.64 : 243,937.84 = 69,065.56 : x
  2. Step 2: Convert to fraction form
    162,756.64/243,937.84 = 69,065.56/x
  3. Step 3: Cross multiply
    162,756.64x = 243,937.84 × 69,065.56
  4. Step 4: Simplify right side
    162,756.64x = 16,847,703,524.79
  5. Step 5: Solve for x
    x = 16,847,703,524.79/162,756.64
  6. Step 6: Final answer
    x = 103,514.69

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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.