Home / 235,517.52-353,370.66-85,768.23

Finding the Fourth Proportional to 235,517.52, 353,370.66 and 85,768.23

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Solution

The fourth proportional to 235,517.52, 353,370.66 and 85,768.23 is: 128,686.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,517.52 : 353,370.66 = 85,768.23 : x
  2. Step 2: Convert to fraction form
    235,517.52/353,370.66 = 85,768.23/x
  3. Step 3: Cross multiply
    235,517.52x = 353,370.66 × 85,768.23
  4. Step 4: Simplify right side
    235,517.52x = 30,307,976,042.13
  5. Step 5: Solve for x
    x = 30,307,976,042.13/235,517.52
  6. Step 6: Final answer
    x = 128,686.72

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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.