Home / 102,761.94-141,800.62-57,435.15

Finding the Fourth Proportional to 102,761.94, 141,800.62 and 57,435.15

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Solution

The fourth proportional to 102,761.94, 141,800.62 and 57,435.15 is: 79,254.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,761.94 : 141,800.62 = 57,435.15 : x
  2. Step 2: Convert to fraction form
    102,761.94/141,800.62 = 57,435.15/x
  3. Step 3: Cross multiply
    102,761.94x = 141,800.62 × 57,435.15
  4. Step 4: Simplify right side
    102,761.94x = 8,144,339,879.79
  5. Step 5: Solve for x
    x = 8,144,339,879.79/102,761.94
  6. Step 6: Final answer
    x = 79,254.44

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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.