Home / 157,747.44-217,696.50-86,131.20

Finding the Fourth Proportional to 157,747.44, 217,696.50 and 86,131.20

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Solution

The fourth proportional to 157,747.44, 217,696.50 and 86,131.20 is: 118,863.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,747.44 : 217,696.50 = 86,131.20 : x
  2. Step 2: Convert to fraction form
    157,747.44/217,696.50 = 86,131.20/x
  3. Step 3: Cross multiply
    157,747.44x = 217,696.50 × 86,131.20
  4. Step 4: Simplify right side
    157,747.44x = 18,750,460,780.80
  5. Step 5: Solve for x
    x = 18,750,460,780.80/157,747.44
  6. Step 6: Final answer
    x = 118,863.80

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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.