Home / 187,899.72-259,273.40-107,310.08

Finding the Fourth Proportional to 187,899.72, 259,273.40 and 107,310.08

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Solution

The fourth proportional to 187,899.72, 259,273.40 and 107,310.08 is: 148,071.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,899.72 : 259,273.40 = 107,310.08 : x
  2. Step 2: Convert to fraction form
    187,899.72/259,273.40 = 107,310.08/x
  3. Step 3: Cross multiply
    187,899.72x = 259,273.40 × 107,310.08
  4. Step 4: Simplify right side
    187,899.72x = 27,822,649,295.87
  5. Step 5: Solve for x
    x = 27,822,649,295.87/187,899.72
  6. Step 6: Final answer
    x = 148,071.80

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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.