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Finding the Fourth Proportional to 80,417.46, 120,814.67 and 75,873.10

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Solution

The fourth proportional to 80,417.46, 120,814.67 and 75,873.10 is: 113,987.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,417.46 : 120,814.67 = 75,873.10 : x
  2. Step 2: Convert to fraction form
    80,417.46/120,814.67 = 75,873.10/x
  3. Step 3: Cross multiply
    80,417.46x = 120,814.67 × 75,873.10
  4. Step 4: Simplify right side
    80,417.46x = 9,166,583,538.38
  5. Step 5: Solve for x
    x = 9,166,583,538.38/80,417.46
  6. Step 6: Final answer
    x = 113,987.48

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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.