Home / 187,512.18-258,892.11-111,055.88

Finding the Fourth Proportional to 187,512.18, 258,892.11 and 111,055.88

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Solution

The fourth proportional to 187,512.18, 258,892.11 and 111,055.88 is: 153,331.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,512.18 : 258,892.11 = 111,055.88 : x
  2. Step 2: Convert to fraction form
    187,512.18/258,892.11 = 111,055.88/x
  3. Step 3: Cross multiply
    187,512.18x = 258,892.11 × 111,055.88
  4. Step 4: Simplify right side
    187,512.18x = 28,751,489,806.65
  5. Step 5: Solve for x
    x = 28,751,489,806.65/187,512.18
  6. Step 6: Final answer
    x = 153,331.32

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1.5x scale

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.