Home / 136,517.20-204,775.80-57,720.40

Finding the Fourth Proportional to 136,517.20, 204,775.80 and 57,720.40

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Solution

The fourth proportional to 136,517.20, 204,775.80 and 57,720.40 is: 86,580.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,517.20 : 204,775.80 = 57,720.40 : x
  2. Step 2: Convert to fraction form
    136,517.20/204,775.80 = 57,720.40/x
  3. Step 3: Cross multiply
    136,517.20x = 204,775.80 × 57,720.40
  4. Step 4: Simplify right side
    136,517.20x = 11,819,741,086.32
  5. Step 5: Solve for x
    x = 11,819,741,086.32/136,517.20
  6. Step 6: Final answer
    x = 86,580.60

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1.5x scale

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.