Home / 187,769.28-259,124.90-102,881.28

Finding the Fourth Proportional to 187,769.28, 259,124.90 and 102,881.28

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Solution

The fourth proportional to 187,769.28, 259,124.90 and 102,881.28 is: 141,977.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,769.28 : 259,124.90 = 102,881.28 : x
  2. Step 2: Convert to fraction form
    187,769.28/259,124.90 = 102,881.28/x
  3. Step 3: Cross multiply
    187,769.28x = 259,124.90 × 102,881.28
  4. Step 4: Simplify right side
    187,769.28x = 26,659,100,877.47
  5. Step 5: Solve for x
    x = 26,659,100,877.47/187,769.28
  6. Step 6: Final answer
    x = 141,977.97

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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.