Home / 235,514.52-353,366.15-85,765.23

Finding the Fourth Proportional to 235,514.52, 353,366.15 and 85,765.23

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Solution

The fourth proportional to 235,514.52, 353,366.15 and 85,765.23 is: 128,682.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,514.52 : 353,366.15 = 85,765.23 : x
  2. Step 2: Convert to fraction form
    235,514.52/353,366.15 = 85,765.23/x
  3. Step 3: Cross multiply
    235,514.52x = 353,366.15 × 85,765.23
  4. Step 4: Simplify right side
    235,514.52x = 30,306,528,700.14
  5. Step 5: Solve for x
    x = 30,306,528,700.14/235,514.52
  6. Step 6: Final answer
    x = 128,682.21

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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.