Home / 188,780.14-260,511.15-103,895.38

Finding the Fourth Proportional to 188,780.14, 260,511.15 and 103,895.38

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Solution

The fourth proportional to 188,780.14, 260,511.15 and 103,895.38 is: 143,372.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,780.14 : 260,511.15 = 103,895.38 : x
  2. Step 2: Convert to fraction form
    188,780.14/260,511.15 = 103,895.38/x
  3. Step 3: Cross multiply
    188,780.14x = 260,511.15 × 103,895.38
  4. Step 4: Simplify right side
    188,780.14x = 27,065,904,923.49
  5. Step 5: Solve for x
    x = 27,065,904,923.49/188,780.14
  6. Step 6: Final answer
    x = 143,372.63

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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.