Home / 187,849.60-259,231.08-102,965.20

Finding the Fourth Proportional to 187,849.60, 259,231.08 and 102,965.20

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Solution

The fourth proportional to 187,849.60, 259,231.08 and 102,965.20 is: 142,091.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,849.60 : 259,231.08 = 102,965.20 : x
  2. Step 2: Convert to fraction form
    187,849.60/259,231.08 = 102,965.20/x
  3. Step 3: Cross multiply
    187,849.60x = 259,231.08 × 102,965.20
  4. Step 4: Simplify right side
    187,849.60x = 26,691,779,998.42
  5. Step 5: Solve for x
    x = 26,691,779,998.42/187,849.60
  6. Step 6: Final answer
    x = 142,091.23

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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.