Home / 187,721.58-259,062.38-102,838.64

Finding the Fourth Proportional to 187,721.58, 259,062.38 and 102,838.64

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Solution

The fourth proportional to 187,721.58, 259,062.38 and 102,838.64 is: 141,920.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,721.58 : 259,062.38 = 102,838.64 : x
  2. Step 2: Convert to fraction form
    187,721.58/259,062.38 = 102,838.64/x
  3. Step 3: Cross multiply
    187,721.58x = 259,062.38 × 102,838.64
  4. Step 4: Simplify right side
    187,721.58x = 26,641,621,024.86
  5. Step 5: Solve for x
    x = 26,641,621,024.86/187,721.58
  6. Step 6: Final answer
    x = 141,920.93

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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.