Home / 102,678.73-141,696.04-57,356.57

Finding the Fourth Proportional to 102,678.73, 141,696.04 and 57,356.57

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Solution

The fourth proportional to 102,678.73, 141,696.04 and 57,356.57 is: 79,151.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,678.73 : 141,696.04 = 57,356.57 : x
  2. Step 2: Convert to fraction form
    102,678.73/141,696.04 = 57,356.57/x
  3. Step 3: Cross multiply
    102,678.73x = 141,696.04 × 57,356.57
  4. Step 4: Simplify right side
    102,678.73x = 8,127,198,836.98
  5. Step 5: Solve for x
    x = 8,127,198,836.98/102,678.73
  6. Step 6: Final answer
    x = 79,151.73

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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.