Home / 268,659.14-402,974.13-81,656.06

Finding the Fourth Proportional to 268,659.14, 402,974.13 and 81,656.06

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Solution

The fourth proportional to 268,659.14, 402,974.13 and 81,656.06 is: 122,479.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,659.14 : 402,974.13 = 81,656.06 : x
  2. Step 2: Convert to fraction form
    268,659.14/402,974.13 = 81,656.06/x
  3. Step 3: Cross multiply
    268,659.14x = 402,974.13 × 81,656.06
  4. Step 4: Simplify right side
    268,659.14x = 32,905,279,737.73
  5. Step 5: Solve for x
    x = 32,905,279,737.73/268,659.14
  6. Step 6: Final answer
    x = 122,479.66

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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.