Home / 108,976.50-163,474.14-30,090.74

Finding the Fourth Proportional to 108,976.50, 163,474.14 and 30,090.74

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Solution

The fourth proportional to 108,976.50, 163,474.14 and 30,090.74 is: 45,138.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,976.50 : 163,474.14 = 30,090.74 : x
  2. Step 2: Convert to fraction form
    108,976.50/163,474.14 = 30,090.74/x
  3. Step 3: Cross multiply
    108,976.50x = 163,474.14 × 30,090.74
  4. Step 4: Simplify right side
    108,976.50x = 4,919,057,843.46
  5. Step 5: Solve for x
    x = 4,919,057,843.46/108,976.50
  6. Step 6: Final answer
    x = 45,138.70

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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.