Home / 131,684.28-181,552.74-83,920.20

Finding the Fourth Proportional to 131,684.28, 181,552.74 and 83,920.20

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Solution

The fourth proportional to 131,684.28, 181,552.74 and 83,920.20 is: 115,700.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,684.28 : 181,552.74 = 83,920.20 : x
  2. Step 2: Convert to fraction form
    131,684.28/181,552.74 = 83,920.20/x
  3. Step 3: Cross multiply
    131,684.28x = 181,552.74 × 83,920.20
  4. Step 4: Simplify right side
    131,684.28x = 15,235,942,251.35
  5. Step 5: Solve for x
    x = 15,235,942,251.35/131,684.28
  6. Step 6: Final answer
    x = 115,700.54

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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.