Home / 126,493.60-189,740.40-121,244.80

Finding the Fourth Proportional to 126,493.60, 189,740.40 and 121,244.80

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Solution

The fourth proportional to 126,493.60, 189,740.40 and 121,244.80 is: 181,867.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,493.60 : 189,740.40 = 121,244.80 : x
  2. Step 2: Convert to fraction form
    126,493.60/189,740.40 = 121,244.80/x
  3. Step 3: Cross multiply
    126,493.60x = 189,740.40 × 121,244.80
  4. Step 4: Simplify right side
    126,493.60x = 23,005,036,849.92
  5. Step 5: Solve for x
    x = 23,005,036,849.92/126,493.60
  6. Step 6: Final answer
    x = 181,867.20

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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.