Home / 108,909.56-163,478.82-96,509

Finding the Fourth Proportional to 108,909.56, 163,478.82 and 96,509

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Solution

The fourth proportional to 108,909.56, 163,478.82 and 96,509 is: 144,864.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,909.56 : 163,478.82 = 96,509 : x
  2. Step 2: Convert to fraction form
    108,909.56/163,478.82 = 96,509/x
  3. Step 3: Cross multiply
    108,909.56x = 163,478.82 × 96,509
  4. Step 4: Simplify right side
    108,909.56x = 15,777,177,439.38
  5. Step 5: Solve for x
    x = 15,777,177,439.38/108,909.56
  6. Step 6: Final answer
    x = 144,864.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.