Home / 108,769.20-163,087.20-99,487.44

Finding the Fourth Proportional to 108,769.20, 163,087.20 and 99,487.44

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Solution

The fourth proportional to 108,769.20, 163,087.20 and 99,487.44 is: 149,170.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,769.20 : 163,087.20 = 99,487.44 : x
  2. Step 2: Convert to fraction form
    108,769.20/163,087.20 = 99,487.44/x
  3. Step 3: Cross multiply
    108,769.20x = 163,087.20 × 99,487.44
  4. Step 4: Simplify right side
    108,769.20x = 16,225,128,024.77
  5. Step 5: Solve for x
    x = 16,225,128,024.77/108,769.20
  6. Step 6: Final answer
    x = 149,170.24

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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.