Home / 157,387.56-217,194.64-85,767.55

Finding the Fourth Proportional to 157,387.56, 217,194.64 and 85,767.55

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Solution

The fourth proportional to 157,387.56, 217,194.64 and 85,767.55 is: 118,359.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,387.56 : 217,194.64 = 85,767.55 : x
  2. Step 2: Convert to fraction form
    157,387.56/217,194.64 = 85,767.55/x
  3. Step 3: Cross multiply
    157,387.56x = 217,194.64 × 85,767.55
  4. Step 4: Simplify right side
    157,387.56x = 18,628,252,145.93
  5. Step 5: Solve for x
    x = 18,628,252,145.93/157,387.56
  6. Step 6: Final answer
    x = 118,359.11

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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.