Home / 169,685.39-254,140.57-81,001.17

Finding the Fourth Proportional to 169,685.39, 254,140.57 and 81,001.17

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Solution

The fourth proportional to 169,685.39, 254,140.57 and 81,001.17 is: 121,316.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,685.39 : 254,140.57 = 81,001.17 : x
  2. Step 2: Convert to fraction form
    169,685.39/254,140.57 = 81,001.17/x
  3. Step 3: Cross multiply
    169,685.39x = 254,140.57 × 81,001.17
  4. Step 4: Simplify right side
    169,685.39x = 20,585,684,352.32
  5. Step 5: Solve for x
    x = 20,585,684,352.32/169,685.39
  6. Step 6: Final answer
    x = 121,316.78

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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.