Home / 187,982.42-259,417.01-103,100.09

Finding the Fourth Proportional to 187,982.42, 259,417.01 and 103,100.09

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Solution

The fourth proportional to 187,982.42, 259,417.01 and 103,100.09 is: 142,278.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,982.42 : 259,417.01 = 103,100.09 : x
  2. Step 2: Convert to fraction form
    187,982.42/259,417.01 = 103,100.09/x
  3. Step 3: Cross multiply
    187,982.42x = 259,417.01 × 103,100.09
  4. Step 4: Simplify right side
    187,982.42x = 26,745,916,039.20
  5. Step 5: Solve for x
    x = 26,745,916,039.20/187,982.42
  6. Step 6: Final answer
    x = 142,278.82

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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.