Home / 136,699.28-188,763.67-85,800.22

Finding the Fourth Proportional to 136,699.28, 188,763.67 and 85,800.22

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Solution

The fourth proportional to 136,699.28, 188,763.67 and 85,800.22 is: 118,478.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,699.28 : 188,763.67 = 85,800.22 : x
  2. Step 2: Convert to fraction form
    136,699.28/188,763.67 = 85,800.22/x
  3. Step 3: Cross multiply
    136,699.28x = 188,763.67 × 85,800.22
  4. Step 4: Simplify right side
    136,699.28x = 16,195,964,414.01
  5. Step 5: Solve for x
    x = 16,195,964,414.01/136,699.28
  6. Step 6: Final answer
    x = 118,478.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.