Home / 136,209.60-204,217.20-61,268.40

Finding the Fourth Proportional to 136,209.60, 204,217.20 and 61,268.40

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Solution

The fourth proportional to 136,209.60, 204,217.20 and 61,268.40 is: 91,858.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,209.60 : 204,217.20 = 61,268.40 : x
  2. Step 2: Convert to fraction form
    136,209.60/204,217.20 = 61,268.40/x
  3. Step 3: Cross multiply
    136,209.60x = 204,217.20 × 61,268.40
  4. Step 4: Simplify right side
    136,209.60x = 12,512,061,096.48
  5. Step 5: Solve for x
    x = 12,512,061,096.48/136,209.60
  6. Step 6: Final answer
    x = 91,858.88

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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.