Home / 157,388.06-217,195.20-85,767.92

Finding the Fourth Proportional to 157,388.06, 217,195.20 and 85,767.92

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Solution

The fourth proportional to 157,388.06, 217,195.20 and 85,767.92 is: 118,359.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,388.06 : 217,195.20 = 85,767.92 : x
  2. Step 2: Convert to fraction form
    157,388.06/217,195.20 = 85,767.92/x
  3. Step 3: Cross multiply
    157,388.06x = 217,195.20 × 85,767.92
  4. Step 4: Simplify right side
    157,388.06x = 18,628,380,537.98
  5. Step 5: Solve for x
    x = 18,628,380,537.98/157,388.06
  6. Step 6: Final answer
    x = 118,359.55

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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.