Home / 140,940.47-211,310.28-66,019.75

Finding the Fourth Proportional to 140,940.47, 211,310.28 and 66,019.75

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Solution

The fourth proportional to 140,940.47, 211,310.28 and 66,019.75 is: 98,982.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,940.47 : 211,310.28 = 66,019.75 : x
  2. Step 2: Convert to fraction form
    140,940.47/211,310.28 = 66,019.75/x
  3. Step 3: Cross multiply
    140,940.47x = 211,310.28 × 66,019.75
  4. Step 4: Simplify right side
    140,940.47x = 13,950,651,376.26
  5. Step 5: Solve for x
    x = 13,950,651,376.26/140,940.47
  6. Step 6: Final answer
    x = 98,982.58

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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.