Home / 125,310.08-172,938.56-68,732.48

Finding the Fourth Proportional to 125,310.08, 172,938.56 and 68,732.48

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Solution

The fourth proportional to 125,310.08, 172,938.56 and 68,732.48 is: 94,856.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,310.08 : 172,938.56 = 68,732.48 : x
  2. Step 2: Convert to fraction form
    125,310.08/172,938.56 = 68,732.48/x
  3. Step 3: Cross multiply
    125,310.08x = 172,938.56 × 68,732.48
  4. Step 4: Simplify right side
    125,310.08x = 11,886,496,116.43
  5. Step 5: Solve for x
    x = 11,886,496,116.43/125,310.08
  6. Step 6: Final answer
    x = 94,856.66

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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.