Home / 188,475.95-260,083.14-111,991.70

Finding the Fourth Proportional to 188,475.95, 260,083.14 and 111,991.70

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Solution

The fourth proportional to 188,475.95, 260,083.14 and 111,991.70 is: 154,540.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,475.95 : 260,083.14 = 111,991.70 : x
  2. Step 2: Convert to fraction form
    188,475.95/260,083.14 = 111,991.70/x
  3. Step 3: Cross multiply
    188,475.95x = 260,083.14 × 111,991.70
  4. Step 4: Simplify right side
    188,475.95x = 29,127,151,689.52
  5. Step 5: Solve for x
    x = 29,127,151,689.52/188,475.95
  6. Step 6: Final answer
    x = 154,540.42

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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.