Home / 268,104.07-402,066.80-108,138.69

Finding the Fourth Proportional to 268,104.07, 402,066.80 and 108,138.69

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Solution

The fourth proportional to 268,104.07, 402,066.80 and 108,138.69 is: 162,172.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,104.07 : 402,066.80 = 108,138.69 : x
  2. Step 2: Convert to fraction form
    268,104.07/402,066.80 = 108,138.69/x
  3. Step 3: Cross multiply
    268,104.07x = 402,066.80 × 108,138.69
  4. Step 4: Simplify right side
    268,104.07x = 43,478,976,503.80
  5. Step 5: Solve for x
    x = 43,478,976,503.80/268,104.07
  6. Step 6: Final answer
    x = 162,172.01

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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.