Home / 188,689.03-260,428.08-108,170.62

Finding the Fourth Proportional to 188,689.03, 260,428.08 and 108,170.62

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Solution

The fourth proportional to 188,689.03, 260,428.08 and 108,170.62 is: 149,296.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,689.03 : 260,428.08 = 108,170.62 : x
  2. Step 2: Convert to fraction form
    188,689.03/260,428.08 = 108,170.62/x
  3. Step 3: Cross multiply
    188,689.03x = 260,428.08 × 108,170.62
  4. Step 4: Simplify right side
    188,689.03x = 28,170,666,879.01
  5. Step 5: Solve for x
    x = 28,170,666,879.01/188,689.03
  6. Step 6: Final answer
    x = 149,296.79

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1.5x scale

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.