Home / 157,636.49-217,543.60-86,020.44

Finding the Fourth Proportional to 157,636.49, 217,543.60 and 86,020.44

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Solution

The fourth proportional to 157,636.49, 217,543.60 and 86,020.44 is: 118,711.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,636.49 : 217,543.60 = 86,020.44 : x
  2. Step 2: Convert to fraction form
    157,636.49/217,543.60 = 86,020.44/x
  3. Step 3: Cross multiply
    157,636.49x = 217,543.60 × 86,020.44
  4. Step 4: Simplify right side
    157,636.49x = 18,713,195,103.47
  5. Step 5: Solve for x
    x = 18,713,195,103.47/157,636.49
  6. Step 6: Final answer
    x = 118,711.07

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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.