Home / 154,069.70-231,169.35-83,999.30

Finding the Fourth Proportional to 154,069.70, 231,169.35 and 83,999.30

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Solution

The fourth proportional to 154,069.70, 231,169.35 and 83,999.30 is: 126,034.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,069.70 : 231,169.35 = 83,999.30 : x
  2. Step 2: Convert to fraction form
    154,069.70/231,169.35 = 83,999.30/x
  3. Step 3: Cross multiply
    154,069.70x = 231,169.35 × 83,999.30
  4. Step 4: Simplify right side
    154,069.70x = 19,418,063,581.46
  5. Step 5: Solve for x
    x = 19,418,063,581.46/154,069.70
  6. Step 6: Final answer
    x = 126,034.28

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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.