Home / 188,868.38-260,637.88-103,985.44

Finding the Fourth Proportional to 188,868.38, 260,637.88 and 103,985.44

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Solution

The fourth proportional to 188,868.38, 260,637.88 and 103,985.44 is: 143,499.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,868.38 : 260,637.88 = 103,985.44 : x
  2. Step 2: Convert to fraction form
    188,868.38/260,637.88 = 103,985.44/x
  3. Step 3: Cross multiply
    188,868.38x = 260,637.88 × 103,985.44
  4. Step 4: Simplify right side
    188,868.38x = 27,102,544,632.47
  5. Step 5: Solve for x
    x = 27,102,544,632.47/188,868.38
  6. Step 6: Final answer
    x = 143,499.64

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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.