Home / 121,740.36-182,422.13-84,373.41

Finding the Fourth Proportional to 121,740.36, 182,422.13 and 84,373.41

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Solution

The fourth proportional to 121,740.36, 182,422.13 and 84,373.41 is: 126,429.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,740.36 : 182,422.13 = 84,373.41 : x
  2. Step 2: Convert to fraction form
    121,740.36/182,422.13 = 84,373.41/x
  3. Step 3: Cross multiply
    121,740.36x = 182,422.13 × 84,373.41
  4. Step 4: Simplify right side
    121,740.36x = 15,391,577,167.56
  5. Step 5: Solve for x
    x = 15,391,577,167.56/121,740.36
  6. Step 6: Final answer
    x = 126,429.54

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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.