Home / 131,703.13-181,750.78-71,273.76

Finding the Fourth Proportional to 131,703.13, 181,750.78 and 71,273.76

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Solution

The fourth proportional to 131,703.13, 181,750.78 and 71,273.76 is: 98,358.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,703.13 : 181,750.78 = 71,273.76 : x
  2. Step 2: Convert to fraction form
    131,703.13/181,750.78 = 71,273.76/x
  3. Step 3: Cross multiply
    131,703.13x = 181,750.78 × 71,273.76
  4. Step 4: Simplify right side
    131,703.13x = 12,954,061,473.53
  5. Step 5: Solve for x
    x = 12,954,061,473.53/131,703.13
  6. Step 6: Final answer
    x = 98,358.04

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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.