Home / 115,785.15-159,814.94-68,053.83

Finding the Fourth Proportional to 115,785.15, 159,814.94 and 68,053.83

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Solution

The fourth proportional to 115,785.15, 159,814.94 and 68,053.83 is: 93,932.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,785.15 : 159,814.94 = 68,053.83 : x
  2. Step 2: Convert to fraction form
    115,785.15/159,814.94 = 68,053.83/x
  3. Step 3: Cross multiply
    115,785.15x = 159,814.94 × 68,053.83
  4. Step 4: Simplify right side
    115,785.15x = 10,876,018,417.95
  5. Step 5: Solve for x
    x = 10,876,018,417.95/115,785.15
  6. Step 6: Final answer
    x = 93,932.76

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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.