Home / 157,635.49-217,542.22-86,019.44

Finding the Fourth Proportional to 157,635.49, 217,542.22 and 86,019.44

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Solution

The fourth proportional to 157,635.49, 217,542.22 and 86,019.44 is: 118,709.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,635.49 : 217,542.22 = 86,019.44 : x
  2. Step 2: Convert to fraction form
    157,635.49/217,542.22 = 86,019.44/x
  3. Step 3: Cross multiply
    157,635.49x = 217,542.22 × 86,019.44
  4. Step 4: Simplify right side
    157,635.49x = 18,712,858,853.05
  5. Step 5: Solve for x
    x = 18,712,858,853.05/157,635.49
  6. Step 6: Final answer
    x = 118,709.69

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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.