Home / 115,181.12-158,895.60-67,404.90

Finding the Fourth Proportional to 115,181.12, 158,895.60 and 67,404.90

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Solution

The fourth proportional to 115,181.12, 158,895.60 and 67,404.90 is: 92,986.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,181.12 : 158,895.60 = 67,404.90 : x
  2. Step 2: Convert to fraction form
    115,181.12/158,895.60 = 67,404.90/x
  3. Step 3: Cross multiply
    115,181.12x = 158,895.60 × 67,404.90
  4. Step 4: Simplify right side
    115,181.12x = 10,710,342,028.44
  5. Step 5: Solve for x
    x = 10,710,342,028.44/115,181.12
  6. Step 6: Final answer
    x = 92,986.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.