Home / 136,909.44-188,856.18-82,423.71

Finding the Fourth Proportional to 136,909.44, 188,856.18 and 82,423.71

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Solution

The fourth proportional to 136,909.44, 188,856.18 and 82,423.71 is: 113,697.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,909.44 : 188,856.18 = 82,423.71 : x
  2. Step 2: Convert to fraction form
    136,909.44/188,856.18 = 82,423.71/x
  3. Step 3: Cross multiply
    136,909.44x = 188,856.18 × 82,423.71
  4. Step 4: Simplify right side
    136,909.44x = 15,566,227,012.03
  5. Step 5: Solve for x
    x = 15,566,227,012.03/136,909.44
  6. Step 6: Final answer
    x = 113,697.25

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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.