Home / 188,289.45-259,839.15-103,406.52

Finding the Fourth Proportional to 188,289.45, 259,839.15 and 103,406.52

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Solution

The fourth proportional to 188,289.45, 259,839.15 and 103,406.52 is: 142,700.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,289.45 : 259,839.15 = 103,406.52 : x
  2. Step 2: Convert to fraction form
    188,289.45/259,839.15 = 103,406.52/x
  3. Step 3: Cross multiply
    188,289.45x = 259,839.15 × 103,406.52
  4. Step 4: Simplify right side
    188,289.45x = 26,869,062,261.26
  5. Step 5: Solve for x
    x = 26,869,062,261.26/188,289.45
  6. Step 6: Final answer
    x = 142,700.84

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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.