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Finding the Fourth Proportional to 187,699.96, 259,030.12 and 107,125.87

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Solution

The fourth proportional to 187,699.96, 259,030.12 and 107,125.87 is: 147,836.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,699.96 : 259,030.12 = 107,125.87 : x
  2. Step 2: Convert to fraction form
    187,699.96/259,030.12 = 107,125.87/x
  3. Step 3: Cross multiply
    187,699.96x = 259,030.12 × 107,125.87
  4. Step 4: Simplify right side
    187,699.96x = 27,748,826,067.78
  5. Step 5: Solve for x
    x = 27,748,826,067.78/187,699.96
  6. Step 6: Final answer
    x = 147,836.08

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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.