Home / 188,658.04-260,348.72-103,780.48

Finding the Fourth Proportional to 188,658.04, 260,348.72 and 103,780.48

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Solution

The fourth proportional to 188,658.04, 260,348.72 and 103,780.48 is: 143,217.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,658.04 : 260,348.72 = 103,780.48 : x
  2. Step 2: Convert to fraction form
    188,658.04/260,348.72 = 103,780.48/x
  3. Step 3: Cross multiply
    188,658.04x = 260,348.72 × 103,780.48
  4. Step 4: Simplify right side
    188,658.04x = 27,019,115,128.99
  5. Step 5: Solve for x
    x = 27,019,115,128.99/188,658.04
  6. Step 6: Final answer
    x = 143,217.41

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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.