Home / 120,025.60-165,633.84-66,306.82

Finding the Fourth Proportional to 120,025.60, 165,633.84 and 66,306.82

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Solution

The fourth proportional to 120,025.60, 165,633.84 and 66,306.82 is: 91,502.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,025.60 : 165,633.84 = 66,306.82 : x
  2. Step 2: Convert to fraction form
    120,025.60/165,633.84 = 66,306.82/x
  3. Step 3: Cross multiply
    120,025.60x = 165,633.84 × 66,306.82
  4. Step 4: Simplify right side
    120,025.60x = 10,982,653,214.79
  5. Step 5: Solve for x
    x = 10,982,653,214.79/120,025.60
  6. Step 6: Final answer
    x = 91,502.59

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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.