Home / 151,847.31-209,549.31-88,189.21

Finding the Fourth Proportional to 151,847.31, 209,549.31 and 88,189.21

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Solution

The fourth proportional to 151,847.31, 209,549.31 and 88,189.21 is: 121,701.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,847.31 : 209,549.31 = 88,189.21 : x
  2. Step 2: Convert to fraction form
    151,847.31/209,549.31 = 88,189.21/x
  3. Step 3: Cross multiply
    151,847.31x = 209,549.31 × 88,189.21
  4. Step 4: Simplify right side
    151,847.31x = 18,479,988,104.95
  5. Step 5: Solve for x
    x = 18,479,988,104.95/151,847.31
  6. Step 6: Final answer
    x = 121,701.12

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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.