Home / 157,299.57-235,716.03-115,542.45

Finding the Fourth Proportional to 157,299.57, 235,716.03 and 115,542.45

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Solution

The fourth proportional to 157,299.57, 235,716.03 and 115,542.45 is: 173,142.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,299.57 : 235,716.03 = 115,542.45 : x
  2. Step 2: Convert to fraction form
    157,299.57/235,716.03 = 115,542.45/x
  3. Step 3: Cross multiply
    157,299.57x = 235,716.03 × 115,542.45
  4. Step 4: Simplify right side
    157,299.57x = 27,235,207,610.47
  5. Step 5: Solve for x
    x = 27,235,207,610.47/157,299.57
  6. Step 6: Final answer
    x = 173,142.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.