Home / 187,211.31-258,351.74-102,328.37

Finding the Fourth Proportional to 187,211.31, 258,351.74 and 102,328.37

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Solution

The fourth proportional to 187,211.31, 258,351.74 and 102,328.37 is: 141,213.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,211.31 : 258,351.74 = 102,328.37 : x
  2. Step 2: Convert to fraction form
    187,211.31/258,351.74 = 102,328.37/x
  3. Step 3: Cross multiply
    187,211.31x = 258,351.74 × 102,328.37
  4. Step 4: Simplify right side
    187,211.31x = 26,436,710,637.46
  5. Step 5: Solve for x
    x = 26,436,710,637.46/187,211.31
  6. Step 6: Final answer
    x = 141,213.21

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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.