Home / 101,883.71-140,682.06-63,687.75

Finding the Fourth Proportional to 101,883.71, 140,682.06 and 63,687.75

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Solution

The fourth proportional to 101,883.71, 140,682.06 and 63,687.75 is: 87,940.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,883.71 : 140,682.06 = 63,687.75 : x
  2. Step 2: Convert to fraction form
    101,883.71/140,682.06 = 63,687.75/x
  3. Step 3: Cross multiply
    101,883.71x = 140,682.06 × 63,687.75
  4. Step 4: Simplify right side
    101,883.71x = 8,959,723,866.77
  5. Step 5: Solve for x
    x = 8,959,723,866.77/101,883.71
  6. Step 6: Final answer
    x = 87,940.70

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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.