Home / 268,113.12-402,080.38-108,147.74

Finding the Fourth Proportional to 268,113.12, 402,080.38 and 108,147.74

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Solution

The fourth proportional to 268,113.12, 402,080.38 and 108,147.74 is: 162,185.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,113.12 : 402,080.38 = 108,147.74 : x
  2. Step 2: Convert to fraction form
    268,113.12/402,080.38 = 108,147.74/x
  3. Step 3: Cross multiply
    268,113.12x = 402,080.38 × 108,147.74
  4. Step 4: Simplify right side
    268,113.12x = 43,484,085,400.54
  5. Step 5: Solve for x
    x = 43,484,085,400.54/268,113.12
  6. Step 6: Final answer
    x = 162,185.59

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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.