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Finding the Fourth Proportional to 125,085.44, 172,617.92 and 68,500.32

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Solution

The fourth proportional to 125,085.44, 172,617.92 and 68,500.32 is: 94,530.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,085.44 : 172,617.92 = 68,500.32 : x
  2. Step 2: Convert to fraction form
    125,085.44/172,617.92 = 68,500.32/x
  3. Step 3: Cross multiply
    125,085.44x = 172,617.92 × 68,500.32
  4. Step 4: Simplify right side
    125,085.44x = 11,824,382,757.73
  5. Step 5: Solve for x
    x = 11,824,382,757.73/125,085.44
  6. Step 6: Final answer
    x = 94,530.45

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1.5x scale

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.