Home / 125,222.74-172,833.46-115,135.20

Finding the Fourth Proportional to 125,222.74, 172,833.46 and 115,135.20

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Solution

The fourth proportional to 125,222.74, 172,833.46 and 115,135.20 is: 158,910.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,222.74 : 172,833.46 = 115,135.20 : x
  2. Step 2: Convert to fraction form
    125,222.74/172,833.46 = 115,135.20/x
  3. Step 3: Cross multiply
    125,222.74x = 172,833.46 × 115,135.20
  4. Step 4: Simplify right side
    125,222.74x = 19,899,214,840.20
  5. Step 5: Solve for x
    x = 19,899,214,840.20/125,222.74
  6. Step 6: Final answer
    x = 158,910.55

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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.