Home / 121,060.40-181,396.20-101,231.60

Finding the Fourth Proportional to 121,060.40, 181,396.20 and 101,231.60

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Solution

The fourth proportional to 121,060.40, 181,396.20 and 101,231.60 is: 151,684.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,060.40 : 181,396.20 = 101,231.60 : x
  2. Step 2: Convert to fraction form
    121,060.40/181,396.20 = 101,231.60/x
  3. Step 3: Cross multiply
    121,060.40x = 181,396.20 × 101,231.60
  4. Step 4: Simplify right side
    121,060.40x = 18,363,027,559.92
  5. Step 5: Solve for x
    x = 18,363,027,559.92/121,060.40
  6. Step 6: Final answer
    x = 151,684.84

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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.