Home / 136,943.20-205,414.80-125,538.40

Finding the Fourth Proportional to 136,943.20, 205,414.80 and 125,538.40

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Solution

The fourth proportional to 136,943.20, 205,414.80 and 125,538.40 is: 188,307.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,943.20 : 205,414.80 = 125,538.40 : x
  2. Step 2: Convert to fraction form
    136,943.20/205,414.80 = 125,538.40/x
  3. Step 3: Cross multiply
    136,943.20x = 205,414.80 × 125,538.40
  4. Step 4: Simplify right side
    136,943.20x = 25,787,445,328.32
  5. Step 5: Solve for x
    x = 25,787,445,328.32/136,943.20
  6. Step 6: Final answer
    x = 188,307.60

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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.