Home / 120,226.35-165,882.56-77,733.75

Finding the Fourth Proportional to 120,226.35, 165,882.56 and 77,733.75

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Solution

The fourth proportional to 120,226.35, 165,882.56 and 77,733.75 is: 107,253.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,226.35 : 165,882.56 = 77,733.75 : x
  2. Step 2: Convert to fraction form
    120,226.35/165,882.56 = 77,733.75/x
  3. Step 3: Cross multiply
    120,226.35x = 165,882.56 × 77,733.75
  4. Step 4: Simplify right side
    120,226.35x = 12,894,673,059.73
  5. Step 5: Solve for x
    x = 12,894,673,059.73/120,226.35
  6. Step 6: Final answer
    x = 107,253.30

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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.