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Finding the Fourth Proportional to 125,219.82, 172,803.87 and 68,632.14

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Solution

The fourth proportional to 125,219.82, 172,803.87 and 68,632.14 is: 94,712.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,219.82 : 172,803.87 = 68,632.14 : x
  2. Step 2: Convert to fraction form
    125,219.82/172,803.87 = 68,632.14/x
  3. Step 3: Cross multiply
    125,219.82x = 172,803.87 × 68,632.14
  4. Step 4: Simplify right side
    125,219.82x = 11,859,899,398.38
  5. Step 5: Solve for x
    x = 11,859,899,398.38/125,219.82
  6. Step 6: Final answer
    x = 94,712.64

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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.