Home / 113,845.40-170,652.90-67,074.20

Finding the Fourth Proportional to 113,845.40, 170,652.90 and 67,074.20

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Solution

The fourth proportional to 113,845.40, 170,652.90 and 67,074.20 is: 100,543.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,845.40 : 170,652.90 = 67,074.20 : x
  2. Step 2: Convert to fraction form
    113,845.40/170,652.90 = 67,074.20/x
  3. Step 3: Cross multiply
    113,845.40x = 170,652.90 × 67,074.20
  4. Step 4: Simplify right side
    113,845.40x = 11,446,406,745.18
  5. Step 5: Solve for x
    x = 11,446,406,745.18/113,845.40
  6. Step 6: Final answer
    x = 100,543.43

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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.