Home / 120,288.90-166,016.25-69,291.71

Finding the Fourth Proportional to 120,288.90, 166,016.25 and 69,291.71

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Solution

The fourth proportional to 120,288.90, 166,016.25 and 69,291.71 is: 95,632.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,288.90 : 166,016.25 = 69,291.71 : x
  2. Step 2: Convert to fraction form
    120,288.90/166,016.25 = 69,291.71/x
  3. Step 3: Cross multiply
    120,288.90x = 166,016.25 × 69,291.71
  4. Step 4: Simplify right side
    120,288.90x = 11,503,549,850.29
  5. Step 5: Solve for x
    x = 11,503,549,850.29/120,288.90
  6. Step 6: Final answer
    x = 95,632.68

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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.