Home / 136,743.40-205,115.10-127,930.60

Finding the Fourth Proportional to 136,743.40, 205,115.10 and 127,930.60

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Solution

The fourth proportional to 136,743.40, 205,115.10 and 127,930.60 is: 191,895.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,743.40 : 205,115.10 = 127,930.60 : x
  2. Step 2: Convert to fraction form
    136,743.40/205,115.10 = 127,930.60/x
  3. Step 3: Cross multiply
    136,743.40x = 205,115.10 × 127,930.60
  4. Step 4: Simplify right side
    136,743.40x = 26,240,497,812.06
  5. Step 5: Solve for x
    x = 26,240,497,812.06/136,743.40
  6. Step 6: Final answer
    x = 191,895.90

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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.