Home / 99,514.16-137,339.24-74,319.92

Finding the Fourth Proportional to 99,514.16, 137,339.24 and 74,319.92

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Solution

The fourth proportional to 99,514.16, 137,339.24 and 74,319.92 is: 102,568.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,514.16 : 137,339.24 = 74,319.92 : x
  2. Step 2: Convert to fraction form
    99,514.16/137,339.24 = 74,319.92/x
  3. Step 3: Cross multiply
    99,514.16x = 137,339.24 × 74,319.92
  4. Step 4: Simplify right side
    99,514.16x = 10,207,041,329.66
  5. Step 5: Solve for x
    x = 10,207,041,329.66/99,514.16
  6. Step 6: Final answer
    x = 102,568.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.