Home / 120,819.40-181,253.40-101,233.60

Finding the Fourth Proportional to 120,819.40, 181,253.40 and 101,233.60

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Solution

The fourth proportional to 120,819.40, 181,253.40 and 101,233.60 is: 151,870.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,819.40 : 181,253.40 = 101,233.60 : x
  2. Step 2: Convert to fraction form
    120,819.40/181,253.40 = 101,233.60/x
  3. Step 3: Cross multiply
    120,819.40x = 181,253.40 × 101,233.60
  4. Step 4: Simplify right side
    120,819.40x = 18,348,934,194.24
  5. Step 5: Solve for x
    x = 18,348,934,194.24/120,819.40
  6. Step 6: Final answer
    x = 151,870.76

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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.