Home / 125,317.53-172,949.12-68,739.84

Finding the Fourth Proportional to 125,317.53, 172,949.12 and 68,739.84

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Solution

The fourth proportional to 125,317.53, 172,949.12 and 68,739.84 is: 94,866.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,317.53 : 172,949.12 = 68,739.84 : x
  2. Step 2: Convert to fraction form
    125,317.53/172,949.12 = 68,739.84/x
  3. Step 3: Cross multiply
    125,317.53x = 172,949.12 × 68,739.84
  4. Step 4: Simplify right side
    125,317.53x = 11,888,494,058.12
  5. Step 5: Solve for x
    x = 11,888,494,058.12/125,317.53
  6. Step 6: Final answer
    x = 94,866.97

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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.