Home / 187,999.38-259,437.74-103,115.84

Finding the Fourth Proportional to 187,999.38, 259,437.74 and 103,115.84

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Solution

The fourth proportional to 187,999.38, 259,437.74 and 103,115.84 is: 142,299.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,999.38 : 259,437.74 = 103,115.84 : x
  2. Step 2: Convert to fraction form
    187,999.38/259,437.74 = 103,115.84/x
  3. Step 3: Cross multiply
    187,999.38x = 259,437.74 × 103,115.84
  4. Step 4: Simplify right side
    187,999.38x = 26,752,138,675.03
  5. Step 5: Solve for x
    x = 26,752,138,675.03/187,999.38
  6. Step 6: Final answer
    x = 142,299.08

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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.