Home / 187,666.62-258,986.10-102,788.34

Finding the Fourth Proportional to 187,666.62, 258,986.10 and 102,788.34

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Solution

The fourth proportional to 187,666.62, 258,986.10 and 102,788.34 is: 141,851.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,666.62 : 258,986.10 = 102,788.34 : x
  2. Step 2: Convert to fraction form
    187,666.62/258,986.10 = 102,788.34/x
  3. Step 3: Cross multiply
    187,666.62x = 258,986.10 × 102,788.34
  4. Step 4: Simplify right side
    187,666.62x = 26,620,751,302.07
  5. Step 5: Solve for x
    x = 26,620,751,302.07/187,666.62
  6. Step 6: Final answer
    x = 141,851.29

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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.