Home / 257,194.20-386,040.30-124,167.80

Finding the Fourth Proportional to 257,194.20, 386,040.30 and 124,167.80

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Solution

The fourth proportional to 257,194.20, 386,040.30 and 124,167.80 is: 186,371.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,194.20 : 386,040.30 = 124,167.80 : x
  2. Step 2: Convert to fraction form
    257,194.20/386,040.30 = 124,167.80/x
  3. Step 3: Cross multiply
    257,194.20x = 386,040.30 × 124,167.80
  4. Step 4: Simplify right side
    257,194.20x = 47,933,774,762.34
  5. Step 5: Solve for x
    x = 47,933,774,762.34/257,194.20
  6. Step 6: Final answer
    x = 186,371.91

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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.