Home / 157,561.16-217,540.88-121,198.03

Finding the Fourth Proportional to 157,561.16, 217,540.88 and 121,198.03

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Solution

The fourth proportional to 157,561.16, 217,540.88 and 121,198.03 is: 167,335.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,561.16 : 217,540.88 = 121,198.03 : x
  2. Step 2: Convert to fraction form
    157,561.16/217,540.88 = 121,198.03/x
  3. Step 3: Cross multiply
    157,561.16x = 217,540.88 × 121,198.03
  4. Step 4: Simplify right side
    157,561.16x = 26,365,526,100.47
  5. Step 5: Solve for x
    x = 26,365,526,100.47/157,561.16
  6. Step 6: Final answer
    x = 167,335.19

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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.