Home / 187,287.87-258,527.54-122,761.26

Finding the Fourth Proportional to 187,287.87, 258,527.54 and 122,761.26

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Solution

The fourth proportional to 187,287.87, 258,527.54 and 122,761.26 is: 169,456.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,287.87 : 258,527.54 = 122,761.26 : x
  2. Step 2: Convert to fraction form
    187,287.87/258,527.54 = 122,761.26/x
  3. Step 3: Cross multiply
    187,287.87x = 258,527.54 × 122,761.26
  4. Step 4: Simplify right side
    187,287.87x = 31,737,166,555.10
  5. Step 5: Solve for x
    x = 31,737,166,555.10/187,287.87
  6. Step 6: Final answer
    x = 169,456.60

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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.