Home / 125,322.72-172,949.76-68,734.32

Finding the Fourth Proportional to 125,322.72, 172,949.76 and 68,734.32

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Solution

The fourth proportional to 125,322.72, 172,949.76 and 68,734.32 is: 94,855.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,322.72 : 172,949.76 = 68,734.32 : x
  2. Step 2: Convert to fraction form
    125,322.72/172,949.76 = 68,734.32/x
  3. Step 3: Cross multiply
    125,322.72x = 172,949.76 × 68,734.32
  4. Step 4: Simplify right side
    125,322.72x = 11,887,584,147.76
  5. Step 5: Solve for x
    x = 11,887,584,147.76/125,322.72
  6. Step 6: Final answer
    x = 94,855.78

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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.