Home / 157,789.32-217,719.94-89,802.25

Finding the Fourth Proportional to 157,789.32, 217,719.94 and 89,802.25

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Solution

The fourth proportional to 157,789.32, 217,719.94 and 89,802.25 is: 123,910.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,789.32 : 217,719.94 = 89,802.25 : x
  2. Step 2: Convert to fraction form
    157,789.32/217,719.94 = 89,802.25/x
  3. Step 3: Cross multiply
    157,789.32x = 217,719.94 × 89,802.25
  4. Step 4: Simplify right side
    157,789.32x = 19,551,740,481.87
  5. Step 5: Solve for x
    x = 19,551,740,481.87/157,789.32
  6. Step 6: Final answer
    x = 123,910.42

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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.