Home / 157,099.80-235,649.70-115,273.43

Finding the Fourth Proportional to 157,099.80, 235,649.70 and 115,273.43

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Solution

The fourth proportional to 157,099.80, 235,649.70 and 115,273.43 is: 172,910.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,099.80 : 235,649.70 = 115,273.43 : x
  2. Step 2: Convert to fraction form
    157,099.80/235,649.70 = 115,273.43/x
  3. Step 3: Cross multiply
    157,099.80x = 235,649.70 × 115,273.43
  4. Step 4: Simplify right side
    157,099.80x = 27,164,149,197.47
  5. Step 5: Solve for x
    x = 27,164,149,197.47/157,099.80
  6. Step 6: Final answer
    x = 172,910.15

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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.