Home / 169,684.42-254,139.12-81,000.20

Finding the Fourth Proportional to 169,684.42, 254,139.12 and 81,000.20

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Solution

The fourth proportional to 169,684.42, 254,139.12 and 81,000.20 is: 121,315.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,684.42 : 254,139.12 = 81,000.20 : x
  2. Step 2: Convert to fraction form
    169,684.42/254,139.12 = 81,000.20/x
  3. Step 3: Cross multiply
    169,684.42x = 254,139.12 × 81,000.20
  4. Step 4: Simplify right side
    169,684.42x = 20,585,320,183.17
  5. Step 5: Solve for x
    x = 20,585,320,183.17/169,684.42
  6. Step 6: Final answer
    x = 121,315.32

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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.