Home / 136,948.40-205,422.60-92,625.20

Finding the Fourth Proportional to 136,948.40, 205,422.60 and 92,625.20

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Solution

The fourth proportional to 136,948.40, 205,422.60 and 92,625.20 is: 138,937.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,948.40 : 205,422.60 = 92,625.20 : x
  2. Step 2: Convert to fraction form
    136,948.40/205,422.60 = 92,625.20/x
  3. Step 3: Cross multiply
    136,948.40x = 205,422.60 × 92,625.20
  4. Step 4: Simplify right side
    136,948.40x = 19,027,309,409.52
  5. Step 5: Solve for x
    x = 19,027,309,409.52/136,948.40
  6. Step 6: Final answer
    x = 138,937.80

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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.