Home / 268,128.13-402,191.82-68,448.52

Finding the Fourth Proportional to 268,128.13, 402,191.82 and 68,448.52

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Solution

The fourth proportional to 268,128.13, 402,191.82 and 68,448.52 is: 102,672.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,128.13 : 402,191.82 = 68,448.52 : x
  2. Step 2: Convert to fraction form
    268,128.13/402,191.82 = 68,448.52/x
  3. Step 3: Cross multiply
    268,128.13x = 402,191.82 × 68,448.52
  4. Step 4: Simplify right side
    268,128.13x = 27,529,434,835.11
  5. Step 5: Solve for x
    x = 27,529,434,835.11/268,128.13
  6. Step 6: Final answer
    x = 102,672.68

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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.