Home / 157,849.54-217,828.80-86,229.88

Finding the Fourth Proportional to 157,849.54, 217,828.80 and 86,229.88

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Solution

The fourth proportional to 157,849.54, 217,828.80 and 86,229.88 is: 118,995.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,849.54 : 217,828.80 = 86,229.88 : x
  2. Step 2: Convert to fraction form
    157,849.54/217,828.80 = 86,229.88/x
  3. Step 3: Cross multiply
    157,849.54x = 217,828.80 × 86,229.88
  4. Step 4: Simplify right side
    157,849.54x = 18,783,351,284.54
  5. Step 5: Solve for x
    x = 18,783,351,284.54/157,849.54
  6. Step 6: Final answer
    x = 118,995.29

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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.