Home / 120,362.76-166,081.05-69,377.58

Finding the Fourth Proportional to 120,362.76, 166,081.05 and 69,377.58

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Solution

The fourth proportional to 120,362.76, 166,081.05 and 69,377.58 is: 95,729.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,362.76 : 166,081.05 = 69,377.58 : x
  2. Step 2: Convert to fraction form
    120,362.76/166,081.05 = 69,377.58/x
  3. Step 3: Cross multiply
    120,362.76x = 166,081.05 × 69,377.58
  4. Step 4: Simplify right side
    120,362.76x = 11,522,301,332.86
  5. Step 5: Solve for x
    x = 11,522,301,332.86/120,362.76
  6. Step 6: Final answer
    x = 95,729.79

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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.