Home / 188,143.31-259,637.77-103,265.84

Finding the Fourth Proportional to 188,143.31, 259,637.77 and 103,265.84

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Solution

The fourth proportional to 188,143.31, 259,637.77 and 103,265.84 is: 142,506.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,143.31 : 259,637.77 = 103,265.84 : x
  2. Step 2: Convert to fraction form
    188,143.31/259,637.77 = 103,265.84/x
  3. Step 3: Cross multiply
    188,143.31x = 259,637.77 × 103,265.84
  4. Step 4: Simplify right side
    188,143.31x = 26,811,713,192.95
  5. Step 5: Solve for x
    x = 26,811,713,192.95/188,143.31
  6. Step 6: Final answer
    x = 142,506.86

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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.