Home / 187,300.86-258,467.56-106,721.55

Finding the Fourth Proportional to 187,300.86, 258,467.56 and 106,721.55

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Solution

The fourth proportional to 187,300.86, 258,467.56 and 106,721.55 is: 147,271.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,300.86 : 258,467.56 = 106,721.55 : x
  2. Step 2: Convert to fraction form
    187,300.86/258,467.56 = 106,721.55/x
  3. Step 3: Cross multiply
    187,300.86x = 258,467.56 × 106,721.55
  4. Step 4: Simplify right side
    187,300.86x = 27,584,058,361.11
  5. Step 5: Solve for x
    x = 27,584,058,361.11/187,300.86
  6. Step 6: Final answer
    x = 147,271.39

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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.