Home / 157,769.74-217,556.44-103,985.88

Finding the Fourth Proportional to 157,769.74, 217,556.44 and 103,985.88

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Solution

The fourth proportional to 157,769.74, 217,556.44 and 103,985.88 is: 143,391.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,769.74 : 217,556.44 = 103,985.88 : x
  2. Step 2: Convert to fraction form
    157,769.74/217,556.44 = 103,985.88/x
  3. Step 3: Cross multiply
    157,769.74x = 217,556.44 × 103,985.88
  4. Step 4: Simplify right side
    157,769.74x = 22,622,797,863.07
  5. Step 5: Solve for x
    x = 22,622,797,863.07/157,769.74
  6. Step 6: Final answer
    x = 143,391.23

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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.