Home / 131,722.08-181,775.04-71,292.48

Finding the Fourth Proportional to 131,722.08, 181,775.04 and 71,292.48

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Solution

The fourth proportional to 131,722.08, 181,775.04 and 71,292.48 is: 98,382.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,722.08 : 181,775.04 = 71,292.48 : x
  2. Step 2: Convert to fraction form
    131,722.08/181,775.04 = 71,292.48/x
  3. Step 3: Cross multiply
    131,722.08x = 181,775.04 × 71,292.48
  4. Step 4: Simplify right side
    131,722.08x = 12,959,193,403.70
  5. Step 5: Solve for x
    x = 12,959,193,403.70/131,722.08
  6. Step 6: Final answer
    x = 98,382.85

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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.