Home / 136,422.40-204,633.60-126,580.90

Finding the Fourth Proportional to 136,422.40, 204,633.60 and 126,580.90

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Solution

The fourth proportional to 136,422.40, 204,633.60 and 126,580.90 is: 189,871.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,422.40 : 204,633.60 = 126,580.90 : x
  2. Step 2: Convert to fraction form
    136,422.40/204,633.60 = 126,580.90/x
  3. Step 3: Cross multiply
    136,422.40x = 204,633.60 × 126,580.90
  4. Step 4: Simplify right side
    136,422.40x = 25,902,705,258.24
  5. Step 5: Solve for x
    x = 25,902,705,258.24/136,422.40
  6. Step 6: Final answer
    x = 189,871.35

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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.