Home / 187,531.15-258,728.93-106,900.56

Finding the Fourth Proportional to 187,531.15, 258,728.93 and 106,900.56

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Solution

The fourth proportional to 187,531.15, 258,728.93 and 106,900.56 is: 147,486.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,531.15 : 258,728.93 = 106,900.56 : x
  2. Step 2: Convert to fraction form
    187,531.15/258,728.93 = 106,900.56/x
  3. Step 3: Cross multiply
    187,531.15x = 258,728.93 × 106,900.56
  4. Step 4: Simplify right side
    187,531.15x = 27,658,267,972.89
  5. Step 5: Solve for x
    x = 27,658,267,972.89/187,531.15
  6. Step 6: Final answer
    x = 147,486.26

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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.