Home / 187,906.36-259,299.60-111,432.66

Finding the Fourth Proportional to 187,906.36, 259,299.60 and 111,432.66

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Solution

The fourth proportional to 187,906.36, 259,299.60 and 111,432.66 is: 153,770.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,906.36 : 259,299.60 = 111,432.66 : x
  2. Step 2: Convert to fraction form
    187,906.36/259,299.60 = 111,432.66/x
  3. Step 3: Cross multiply
    187,906.36x = 259,299.60 × 111,432.66
  4. Step 4: Simplify right side
    187,906.36x = 28,894,445,173.46
  5. Step 5: Solve for x
    x = 28,894,445,173.46/187,906.36
  6. Step 6: Final answer
    x = 153,770.45

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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.