Home / 83,674.08-115,337.52-82,015.20

Finding the Fourth Proportional to 83,674.08, 115,337.52 and 82,015.20

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Solution

The fourth proportional to 83,674.08, 115,337.52 and 82,015.20 is: 113,050.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,674.08 : 115,337.52 = 82,015.20 : x
  2. Step 2: Convert to fraction form
    83,674.08/115,337.52 = 82,015.20/x
  3. Step 3: Cross multiply
    83,674.08x = 115,337.52 × 82,015.20
  4. Step 4: Simplify right side
    83,674.08x = 9,459,429,770.30
  5. Step 5: Solve for x
    x = 9,459,429,770.30/83,674.08
  6. Step 6: Final answer
    x = 113,050.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.