Home / 205,479.45-308,145.33-79,055.12

Finding the Fourth Proportional to 205,479.45, 308,145.33 and 79,055.12

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Solution

The fourth proportional to 205,479.45, 308,145.33 and 79,055.12 is: 118,554.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,479.45 : 308,145.33 = 79,055.12 : x
  2. Step 2: Convert to fraction form
    205,479.45/308,145.33 = 79,055.12/x
  3. Step 3: Cross multiply
    205,479.45x = 308,145.33 × 79,055.12
  4. Step 4: Simplify right side
    205,479.45x = 24,360,466,810.95
  5. Step 5: Solve for x
    x = 24,360,466,810.95/205,479.45
  6. Step 6: Final answer
    x = 118,554.27

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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.