Home / 141,965,107.20-213,042,139.20-80,554,147.20

Finding the Fourth Proportional to 141,965,107.20, 213,042,139.20 and 80,554,147.20

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Solution

The fourth proportional to 141,965,107.20, 213,042,139.20 and 80,554,147.20 is: 120,884,829.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,965,107.20 : 213,042,139.20 = 80,554,147.20 : x
  2. Step 2: Convert to fraction form
    141,965,107.20/213,042,139.20 = 80,554,147.20/x
  3. Step 3: Cross multiply
    141,965,107.20x = 213,042,139.20 × 80,554,147.20
  4. Step 4: Simplify right side
    141,965,107.20x = 17,161,427,840,919,690
  5. Step 5: Solve for x
    x = 17,161,427,840,919,690/141,965,107.20
  6. Step 6: Final answer
    x = 120,884,829.94

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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.