Home / 420,694.69-631,042.03-125,206.69

Finding the Fourth Proportional to 420,694.69, 631,042.03 and 125,206.69

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Solution

The fourth proportional to 420,694.69, 631,042.03 and 125,206.69 is: 187,810.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,694.69 : 631,042.03 = 125,206.69 : x
  2. Step 2: Convert to fraction form
    420,694.69/631,042.03 = 125,206.69/x
  3. Step 3: Cross multiply
    420,694.69x = 631,042.03 × 125,206.69
  4. Step 4: Simplify right side
    420,694.69x = 79,010,682,406.08
  5. Step 5: Solve for x
    x = 79,010,682,406.08/420,694.69
  6. Step 6: Final answer
    x = 187,810.03

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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.