Home / 205,194.27-307,776.03-72,075.70

Finding the Fourth Proportional to 205,194.27, 307,776.03 and 72,075.70

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Solution

The fourth proportional to 205,194.27, 307,776.03 and 72,075.70 is: 108,108.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,194.27 : 307,776.03 = 72,075.70 : x
  2. Step 2: Convert to fraction form
    205,194.27/307,776.03 = 72,075.70/x
  3. Step 3: Cross multiply
    205,194.27x = 307,776.03 × 72,075.70
  4. Step 4: Simplify right side
    205,194.27x = 22,183,172,805.47
  5. Step 5: Solve for x
    x = 22,183,172,805.47/205,194.27
  6. Step 6: Final answer
    x = 108,108.15

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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.