Home / 187,561.42-258,834.77-102,678.48

Finding the Fourth Proportional to 187,561.42, 258,834.77 and 102,678.48

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Solution

The fourth proportional to 187,561.42, 258,834.77 and 102,678.48 is: 141,696.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,561.42 : 258,834.77 = 102,678.48 : x
  2. Step 2: Convert to fraction form
    187,561.42/258,834.77 = 102,678.48/x
  3. Step 3: Cross multiply
    187,561.42x = 258,834.77 × 102,678.48
  4. Step 4: Simplify right side
    187,561.42x = 26,576,760,754.75
  5. Step 5: Solve for x
    x = 26,576,760,754.75/187,561.42
  6. Step 6: Final answer
    x = 141,696.31

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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.