Home / 108,669.13-149,963.94-63,378.52

Finding the Fourth Proportional to 108,669.13, 149,963.94 and 63,378.52

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Solution

The fourth proportional to 108,669.13, 149,963.94 and 63,378.52 is: 87,462.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,669.13 : 149,963.94 = 63,378.52 : x
  2. Step 2: Convert to fraction form
    108,669.13/149,963.94 = 63,378.52/x
  3. Step 3: Cross multiply
    108,669.13x = 149,963.94 × 63,378.52
  4. Step 4: Simplify right side
    108,669.13x = 9,504,491,820.75
  5. Step 5: Solve for x
    x = 9,504,491,820.75/108,669.13
  6. Step 6: Final answer
    x = 87,462.67

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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.