Home / 124,659.40-172,169.94-82,409.80

Finding the Fourth Proportional to 124,659.40, 172,169.94 and 82,409.80

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Solution

The fourth proportional to 124,659.40, 172,169.94 and 82,409.80 is: 113,818.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,659.40 : 172,169.94 = 82,409.80 : x
  2. Step 2: Convert to fraction form
    124,659.40/172,169.94 = 82,409.80/x
  3. Step 3: Cross multiply
    124,659.40x = 172,169.94 × 82,409.80
  4. Step 4: Simplify right side
    124,659.40x = 14,188,490,321.41
  5. Step 5: Solve for x
    x = 14,188,490,321.41/124,659.40
  6. Step 6: Final answer
    x = 113,818.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.