Home / 125,218.72-172,794-68,626.08

Finding the Fourth Proportional to 125,218.72, 172,794 and 68,626.08

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Solution

The fourth proportional to 125,218.72, 172,794 and 68,626.08 is: 94,699.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,218.72 : 172,794 = 68,626.08 : x
  2. Step 2: Convert to fraction form
    125,218.72/172,794 = 68,626.08/x
  3. Step 3: Cross multiply
    125,218.72x = 172,794 × 68,626.08
  4. Step 4: Simplify right side
    125,218.72x = 11,858,174,867.52
  5. Step 5: Solve for x
    x = 11,858,174,867.52/125,218.72
  6. Step 6: Final answer
    x = 94,699.70

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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.