Home / 125,048.93-172,589.34-74,090.36

Finding the Fourth Proportional to 125,048.93, 172,589.34 and 74,090.36

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Solution

The fourth proportional to 125,048.93, 172,589.34 and 74,090.36 is: 102,257.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,048.93 : 172,589.34 = 74,090.36 : x
  2. Step 2: Convert to fraction form
    125,048.93/172,589.34 = 74,090.36/x
  3. Step 3: Cross multiply
    125,048.93x = 172,589.34 × 74,090.36
  4. Step 4: Simplify right side
    125,048.93x = 12,787,205,469.82
  5. Step 5: Solve for x
    x = 12,787,205,469.82/125,048.93
  6. Step 6: Final answer
    x = 102,257.61

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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.