Home / 170,061.20-255,096-81,324.08

Finding the Fourth Proportional to 170,061.20, 255,096 and 81,324.08

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Solution

The fourth proportional to 170,061.20, 255,096 and 81,324.08 is: 121,988.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,061.20 : 255,096 = 81,324.08 : x
  2. Step 2: Convert to fraction form
    170,061.20/255,096 = 81,324.08/x
  3. Step 3: Cross multiply
    170,061.20x = 255,096 × 81,324.08
  4. Step 4: Simplify right side
    170,061.20x = 20,745,447,511.68
  5. Step 5: Solve for x
    x = 20,745,447,511.68/170,061.20
  6. Step 6: Final answer
    x = 121,988.13

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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.