Home / 227,142.51-313,458.77-125,171.61

Finding the Fourth Proportional to 227,142.51, 313,458.77 and 125,171.61

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Solution

The fourth proportional to 227,142.51, 313,458.77 and 125,171.61 is: 172,737.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,142.51 : 313,458.77 = 125,171.61 : x
  2. Step 2: Convert to fraction form
    227,142.51/313,458.77 = 125,171.61/x
  3. Step 3: Cross multiply
    227,142.51x = 313,458.77 × 125,171.61
  4. Step 4: Simplify right side
    227,142.51x = 39,236,138,283.66
  5. Step 5: Solve for x
    x = 39,236,138,283.66/227,142.51
  6. Step 6: Final answer
    x = 172,737.98

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1.5x scale

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.