Home / 187,721.58-259,053.71-101,678.43

Finding the Fourth Proportional to 187,721.58, 259,053.71 and 101,678.43

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Solution

The fourth proportional to 187,721.58, 259,053.71 and 101,678.43 is: 140,315.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,721.58 : 259,053.71 = 101,678.43 : x
  2. Step 2: Convert to fraction form
    187,721.58/259,053.71 = 101,678.43/x
  3. Step 3: Cross multiply
    187,721.58x = 259,053.71 × 101,678.43
  4. Step 4: Simplify right side
    187,721.58x = 26,340,174,010.08
  5. Step 5: Solve for x
    x = 26,340,174,010.08/187,721.58
  6. Step 6: Final answer
    x = 140,315.11

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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.