Home / 125,171.04-172,729.44-68,581.20

Finding the Fourth Proportional to 125,171.04, 172,729.44 and 68,581.20

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Solution

The fourth proportional to 125,171.04, 172,729.44 and 68,581.20 is: 94,638.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,171.04 : 172,729.44 = 68,581.20 : x
  2. Step 2: Convert to fraction form
    125,171.04/172,729.44 = 68,581.20/x
  3. Step 3: Cross multiply
    125,171.04x = 172,729.44 × 68,581.20
  4. Step 4: Simplify right side
    125,171.04x = 11,845,992,270.53
  5. Step 5: Solve for x
    x = 11,845,992,270.53/125,171.04
  6. Step 6: Final answer
    x = 94,638.44

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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.