Home / 120,366.04-166,103.07-66,649.90

Finding the Fourth Proportional to 120,366.04, 166,103.07 and 66,649.90

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Solution

The fourth proportional to 120,366.04, 166,103.07 and 66,649.90 is: 91,975.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,366.04 : 166,103.07 = 66,649.90 : x
  2. Step 2: Convert to fraction form
    120,366.04/166,103.07 = 66,649.90/x
  3. Step 3: Cross multiply
    120,366.04x = 166,103.07 × 66,649.90
  4. Step 4: Simplify right side
    120,366.04x = 11,070,753,151.32
  5. Step 5: Solve for x
    x = 11,070,753,151.32/120,366.04
  6. Step 6: Final answer
    x = 91,975.72

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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.