Home / 157,816.22-217,777.56-89,849.75

Finding the Fourth Proportional to 157,816.22, 217,777.56 and 89,849.75

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Solution

The fourth proportional to 157,816.22, 217,777.56 and 89,849.75 is: 123,987.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,816.22 : 217,777.56 = 89,849.75 : x
  2. Step 2: Convert to fraction form
    157,816.22/217,777.56 = 89,849.75/x
  3. Step 3: Cross multiply
    157,816.22x = 217,777.56 × 89,849.75
  4. Step 4: Simplify right side
    157,816.22x = 19,567,259,321.61
  5. Step 5: Solve for x
    x = 19,567,259,321.61/157,816.22
  6. Step 6: Final answer
    x = 123,987.63

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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.