Home / 92,772,081.20-139,158,121.80-87,481,290.80

Finding the Fourth Proportional to 92,772,081.20, 139,158,121.80 and 87,481,290.80

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Solution

The fourth proportional to 92,772,081.20, 139,158,121.80 and 87,481,290.80 is: 131,221,936.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,772,081.20 : 139,158,121.80 = 87,481,290.80 : x
  2. Step 2: Convert to fraction form
    92,772,081.20/139,158,121.80 = 87,481,290.80/x
  3. Step 3: Cross multiply
    92,772,081.20x = 139,158,121.80 × 87,481,290.80
  4. Step 4: Simplify right side
    92,772,081.20x = 12,173,732,120,367,620
  5. Step 5: Solve for x
    x = 12,173,732,120,367,620/92,772,081.20
  6. Step 6: Final answer
    x = 131,221,936.20

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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.