Home / 187,221.92-258,354-106,637.60

Finding the Fourth Proportional to 187,221.92, 258,354 and 106,637.60

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Solution

The fourth proportional to 187,221.92, 258,354 and 106,637.60 is: 147,152.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,221.92 : 258,354 = 106,637.60 : x
  2. Step 2: Convert to fraction form
    187,221.92/258,354 = 106,637.60/x
  3. Step 3: Cross multiply
    187,221.92x = 258,354 × 106,637.60
  4. Step 4: Simplify right side
    187,221.92x = 27,550,250,510.40
  5. Step 5: Solve for x
    x = 27,550,250,510.40/187,221.92
  6. Step 6: Final answer
    x = 147,152.91

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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.