Home / 102,163,919.12-140,989,194.60-55,757,151.44

Finding the Fourth Proportional to 102,163,919.12, 140,989,194.60 and 55,757,151.44

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Solution

The fourth proportional to 102,163,919.12, 140,989,194.60 and 55,757,151.44 is: 76,946,498.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,163,919.12 : 140,989,194.60 = 55,757,151.44 : x
  2. Step 2: Convert to fraction form
    102,163,919.12/140,989,194.60 = 55,757,151.44/x
  3. Step 3: Cross multiply
    102,163,919.12x = 140,989,194.60 × 55,757,151.44
  4. Step 4: Simplify right side
    102,163,919.12x = 7,861,155,874,715,830
  5. Step 5: Solve for x
    x = 7,861,155,874,715,830/102,163,919.12
  6. Step 6: Final answer
    x = 76,946,498.75

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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.