Home / 136,956.40-205,434.60-115,961.20

Finding the Fourth Proportional to 136,956.40, 205,434.60 and 115,961.20

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Solution

The fourth proportional to 136,956.40, 205,434.60 and 115,961.20 is: 173,941.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,956.40 : 205,434.60 = 115,961.20 : x
  2. Step 2: Convert to fraction form
    136,956.40/205,434.60 = 115,961.20/x
  3. Step 3: Cross multiply
    136,956.40x = 205,434.60 × 115,961.20
  4. Step 4: Simplify right side
    136,956.40x = 23,822,442,737.52
  5. Step 5: Solve for x
    x = 23,822,442,737.52/136,956.40
  6. Step 6: Final answer
    x = 173,941.80

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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.