Home / 102,800.73-141,872.07-57,477.79

Finding the Fourth Proportional to 102,800.73, 141,872.07 and 57,477.79

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Solution

The fourth proportional to 102,800.73, 141,872.07 and 57,477.79 is: 79,323.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,800.73 : 141,872.07 = 57,477.79 : x
  2. Step 2: Convert to fraction form
    102,800.73/141,872.07 = 57,477.79/x
  3. Step 3: Cross multiply
    102,800.73x = 141,872.07 × 57,477.79
  4. Step 4: Simplify right side
    102,800.73x = 8,154,493,046.33
  5. Step 5: Solve for x
    x = 8,154,493,046.33/102,800.73
  6. Step 6: Final answer
    x = 79,323.30

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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.