Home / 101,677.73-140,298.78-63,431.20

Finding the Fourth Proportional to 101,677.73, 140,298.78 and 63,431.20

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Solution

The fourth proportional to 101,677.73, 140,298.78 and 63,431.20 is: 87,524.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,677.73 : 140,298.78 = 63,431.20 : x
  2. Step 2: Convert to fraction form
    101,677.73/140,298.78 = 63,431.20/x
  3. Step 3: Cross multiply
    101,677.73x = 140,298.78 × 63,431.20
  4. Step 4: Simplify right side
    101,677.73x = 8,899,320,387.18
  5. Step 5: Solve for x
    x = 8,899,320,387.18/101,677.73
  6. Step 6: Final answer
    x = 87,524.77

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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.