Home / 268,101.34-402,151.66-68,421.73

Finding the Fourth Proportional to 268,101.34, 402,151.66 and 68,421.73

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Solution

The fourth proportional to 268,101.34, 402,151.66 and 68,421.73 is: 102,632.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,101.34 : 402,151.66 = 68,421.73 : x
  2. Step 2: Convert to fraction form
    268,101.34/402,151.66 = 68,421.73/x
  3. Step 3: Cross multiply
    268,101.34x = 402,151.66 × 68,421.73
  4. Step 4: Simplify right side
    268,101.34x = 27,515,912,299.57
  5. Step 5: Solve for x
    x = 27,515,912,299.57/268,101.34
  6. Step 6: Final answer
    x = 102,632.51

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1.5x scale

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.