Home / 157,278.85-217,047.41-85,660.27

Finding the Fourth Proportional to 157,278.85, 217,047.41 and 85,660.27

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Solution

The fourth proportional to 157,278.85, 217,047.41 and 85,660.27 is: 118,212.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,278.85 : 217,047.41 = 85,660.27 : x
  2. Step 2: Convert to fraction form
    157,278.85/217,047.41 = 85,660.27/x
  3. Step 3: Cross multiply
    157,278.85x = 217,047.41 × 85,660.27
  4. Step 4: Simplify right side
    157,278.85x = 18,592,339,743.40
  5. Step 5: Solve for x
    x = 18,592,339,743.40/157,278.85
  6. Step 6: Final answer
    x = 118,212.59

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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.