Home / 131,833.85-181,929.92-71,403.12

Finding the Fourth Proportional to 131,833.85, 181,929.92 and 71,403.12

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Solution

The fourth proportional to 131,833.85, 181,929.92 and 71,403.12 is: 98,535.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,833.85 : 181,929.92 = 71,403.12 : x
  2. Step 2: Convert to fraction form
    131,833.85/181,929.92 = 71,403.12/x
  3. Step 3: Cross multiply
    131,833.85x = 181,929.92 × 71,403.12
  4. Step 4: Simplify right side
    131,833.85x = 12,990,363,552.33
  5. Step 5: Solve for x
    x = 12,990,363,552.33/131,833.85
  6. Step 6: Final answer
    x = 98,535.88

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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.