Home / 187,290.89-258,478.31-106,744.36

Finding the Fourth Proportional to 187,290.89, 258,478.31 and 106,744.36

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Solution

The fourth proportional to 187,290.89, 258,478.31 and 106,744.36 is: 147,316.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,290.89 : 258,478.31 = 106,744.36 : x
  2. Step 2: Convert to fraction form
    187,290.89/258,478.31 = 106,744.36/x
  3. Step 3: Cross multiply
    187,290.89x = 258,478.31 × 106,744.36
  4. Step 4: Simplify right side
    187,290.89x = 27,591,101,774.83
  5. Step 5: Solve for x
    x = 27,591,101,774.83/187,290.89
  6. Step 6: Final answer
    x = 147,316.84

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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.