Home / 187,720.20-259,072.48-107,159.84

Finding the Fourth Proportional to 187,720.20, 259,072.48 and 107,159.84

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Solution

The fourth proportional to 187,720.20, 259,072.48 and 107,159.84 is: 147,891.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,720.20 : 259,072.48 = 107,159.84 : x
  2. Step 2: Convert to fraction form
    187,720.20/259,072.48 = 107,159.84/x
  3. Step 3: Cross multiply
    187,720.20x = 259,072.48 × 107,159.84
  4. Step 4: Simplify right side
    187,720.20x = 27,762,165,505.20
  5. Step 5: Solve for x
    x = 27,762,165,505.20/187,720.20
  6. Step 6: Final answer
    x = 147,891.20

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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.