Home / 113,872.20-170,405.10-99,241.80

Finding the Fourth Proportional to 113,872.20, 170,405.10 and 99,241.80

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Solution

The fourth proportional to 113,872.20, 170,405.10 and 99,241.80 is: 148,511.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,872.20 : 170,405.10 = 99,241.80 : x
  2. Step 2: Convert to fraction form
    113,872.20/170,405.10 = 99,241.80/x
  3. Step 3: Cross multiply
    113,872.20x = 170,405.10 × 99,241.80
  4. Step 4: Simplify right side
    113,872.20x = 16,911,308,853.18
  5. Step 5: Solve for x
    x = 16,911,308,853.18/113,872.20
  6. Step 6: Final answer
    x = 148,511.30

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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.