Home / 157,786.08-217,765.37-89,789.82

Finding the Fourth Proportional to 157,786.08, 217,765.37 and 89,789.82

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Solution

The fourth proportional to 157,786.08, 217,765.37 and 89,789.82 is: 123,921.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,786.08 : 217,765.37 = 89,789.82 : x
  2. Step 2: Convert to fraction form
    157,786.08/217,765.37 = 89,789.82/x
  3. Step 3: Cross multiply
    157,786.08x = 217,765.37 × 89,789.82
  4. Step 4: Simplify right side
    157,786.08x = 19,553,113,374.53
  5. Step 5: Solve for x
    x = 19,553,113,374.53/157,786.08
  6. Step 6: Final answer
    x = 123,921.66

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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.