Home / 104,846.20-157,269.30-81,489.40

Finding the Fourth Proportional to 104,846.20, 157,269.30 and 81,489.40

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Solution

The fourth proportional to 104,846.20, 157,269.30 and 81,489.40 is: 122,234.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,846.20 : 157,269.30 = 81,489.40 : x
  2. Step 2: Convert to fraction form
    104,846.20/157,269.30 = 81,489.40/x
  3. Step 3: Cross multiply
    104,846.20x = 157,269.30 × 81,489.40
  4. Step 4: Simplify right side
    104,846.20x = 12,815,780,895.42
  5. Step 5: Solve for x
    x = 12,815,780,895.42/104,846.20
  6. Step 6: Final answer
    x = 122,234.10

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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.