Home / 188,167.61-259,669.09-102,126.72

Finding the Fourth Proportional to 188,167.61, 259,669.09 and 102,126.72

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Solution

The fourth proportional to 188,167.61, 259,669.09 and 102,126.72 is: 140,933.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,167.61 : 259,669.09 = 102,126.72 : x
  2. Step 2: Convert to fraction form
    188,167.61/259,669.09 = 102,126.72/x
  3. Step 3: Cross multiply
    188,167.61x = 259,669.09 × 102,126.72
  4. Step 4: Simplify right side
    188,167.61x = 26,519,153,548.50
  5. Step 5: Solve for x
    x = 26,519,153,548.50/188,167.61
  6. Step 6: Final answer
    x = 140,933.68

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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.