Home / 125,176.10-172,743.09-68,587.46

Finding the Fourth Proportional to 125,176.10, 172,743.09 and 68,587.46

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Solution

The fourth proportional to 125,176.10, 172,743.09 and 68,587.46 is: 94,650.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,176.10 : 172,743.09 = 68,587.46 : x
  2. Step 2: Convert to fraction form
    125,176.10/172,743.09 = 68,587.46/x
  3. Step 3: Cross multiply
    125,176.10x = 172,743.09 × 68,587.46
  4. Step 4: Simplify right side
    125,176.10x = 11,848,009,775.65
  5. Step 5: Solve for x
    x = 11,848,009,775.65/125,176.10
  6. Step 6: Final answer
    x = 94,650.73

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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.