Home / 169,685.05-254,140.07-81,000.84

Finding the Fourth Proportional to 169,685.05, 254,140.07 and 81,000.84

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Solution

The fourth proportional to 169,685.05, 254,140.07 and 81,000.84 is: 121,316.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,685.05 : 254,140.07 = 81,000.84 : x
  2. Step 2: Convert to fraction form
    169,685.05/254,140.07 = 81,000.84/x
  3. Step 3: Cross multiply
    169,685.05x = 254,140.07 × 81,000.84
  4. Step 4: Simplify right side
    169,685.05x = 20,585,557,893.10
  5. Step 5: Solve for x
    x = 20,585,557,893.10/169,685.05
  6. Step 6: Final answer
    x = 121,316.27

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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.