Home / 188,723.95-260,409.40-108,135.97

Finding the Fourth Proportional to 188,723.95, 260,409.40 and 108,135.97

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Solution

The fourth proportional to 188,723.95, 260,409.40 and 108,135.97 is: 149,210.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,723.95 : 260,409.40 = 108,135.97 : x
  2. Step 2: Convert to fraction form
    188,723.95/260,409.40 = 108,135.97/x
  3. Step 3: Cross multiply
    188,723.95x = 260,409.40 × 108,135.97
  4. Step 4: Simplify right side
    188,723.95x = 28,159,623,066.12
  5. Step 5: Solve for x
    x = 28,159,623,066.12/188,723.95
  6. Step 6: Final answer
    x = 149,210.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.