Home / 187,922.88-259,039.20-142,418.88

Finding the Fourth Proportional to 187,922.88, 259,039.20 and 142,418.88

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Solution

The fourth proportional to 187,922.88, 259,039.20 and 142,418.88 is: 196,314.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,922.88 : 259,039.20 = 142,418.88 : x
  2. Step 2: Convert to fraction form
    187,922.88/259,039.20 = 142,418.88/x
  3. Step 3: Cross multiply
    187,922.88x = 259,039.20 × 142,418.88
  4. Step 4: Simplify right side
    187,922.88x = 36,892,072,740.10
  5. Step 5: Solve for x
    x = 36,892,072,740.10/187,922.88
  6. Step 6: Final answer
    x = 196,314.96

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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.