Home / 102,996.20-154,494.30-80,877.80

Finding the Fourth Proportional to 102,996.20, 154,494.30 and 80,877.80

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Solution

The fourth proportional to 102,996.20, 154,494.30 and 80,877.80 is: 121,316.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,996.20 : 154,494.30 = 80,877.80 : x
  2. Step 2: Convert to fraction form
    102,996.20/154,494.30 = 80,877.80/x
  3. Step 3: Cross multiply
    102,996.20x = 154,494.30 × 80,877.80
  4. Step 4: Simplify right side
    102,996.20x = 12,495,159,096.54
  5. Step 5: Solve for x
    x = 12,495,159,096.54/102,996.20
  6. Step 6: Final answer
    x = 121,316.70

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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.