Home / 137,266.20-205,934.77-80,388.11

Finding the Fourth Proportional to 137,266.20, 205,934.77 and 80,388.11

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Solution

The fourth proportional to 137,266.20, 205,934.77 and 80,388.11 is: 120,602.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,266.20 : 205,934.77 = 80,388.11 : x
  2. Step 2: Convert to fraction form
    137,266.20/205,934.77 = 80,388.11/x
  3. Step 3: Cross multiply
    137,266.20x = 205,934.77 × 80,388.11
  4. Step 4: Simplify right side
    137,266.20x = 16,554,706,943.58
  5. Step 5: Solve for x
    x = 16,554,706,943.58/137,266.20
  6. Step 6: Final answer
    x = 120,602.94

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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.