Home / 120,884.40-181,149.12-60,830.28

Finding the Fourth Proportional to 120,884.40, 181,149.12 and 60,830.28

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Solution

The fourth proportional to 120,884.40, 181,149.12 and 60,830.28 is: 91,156.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,884.40 : 181,149.12 = 60,830.28 : x
  2. Step 2: Convert to fraction form
    120,884.40/181,149.12 = 60,830.28/x
  3. Step 3: Cross multiply
    120,884.40x = 181,149.12 × 60,830.28
  4. Step 4: Simplify right side
    120,884.40x = 11,019,351,691.35
  5. Step 5: Solve for x
    x = 11,019,351,691.35/120,884.40
  6. Step 6: Final answer
    x = 91,156.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.