Home / 131,119.68-196,734.84-83,788.14

Finding the Fourth Proportional to 131,119.68, 196,734.84 and 83,788.14

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Solution

The fourth proportional to 131,119.68, 196,734.84 and 83,788.14 is: 125,717.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,119.68 : 196,734.84 = 83,788.14 : x
  2. Step 2: Convert to fraction form
    131,119.68/196,734.84 = 83,788.14/x
  3. Step 3: Cross multiply
    131,119.68x = 196,734.84 × 83,788.14
  4. Step 4: Simplify right side
    131,119.68x = 16,484,046,316.80
  5. Step 5: Solve for x
    x = 16,484,046,316.80/131,119.68
  6. Step 6: Final answer
    x = 125,717.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.