Home / 147,668-221,499.92-68,738.08

Finding the Fourth Proportional to 147,668, 221,499.92 and 68,738.08

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Solution

The fourth proportional to 147,668, 221,499.92 and 68,738.08 is: 103,106.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,668 : 221,499.92 = 68,738.08 : x
  2. Step 2: Convert to fraction form
    147,668/221,499.92 = 68,738.08/x
  3. Step 3: Cross multiply
    147,668x = 221,499.92 × 68,738.08
  4. Step 4: Simplify right side
    147,668x = 15,225,479,220.95
  5. Step 5: Solve for x
    x = 15,225,479,220.95/147,668
  6. Step 6: Final answer
    x = 103,106.15

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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.