Home / 125,201.04-172,780.38-68,612.64

Finding the Fourth Proportional to 125,201.04, 172,780.38 and 68,612.64

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Solution

The fourth proportional to 125,201.04, 172,780.38 and 68,612.64 is: 94,687.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,201.04 : 172,780.38 = 68,612.64 : x
  2. Step 2: Convert to fraction form
    125,201.04/172,780.38 = 68,612.64/x
  3. Step 3: Cross multiply
    125,201.04x = 172,780.38 × 68,612.64
  4. Step 4: Simplify right side
    125,201.04x = 11,854,918,012.00
  5. Step 5: Solve for x
    x = 11,854,918,012.00/125,201.04
  6. Step 6: Final answer
    x = 94,687.06

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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.