Home / 105,694.05-145,854.63-57,945.77

Finding the Fourth Proportional to 105,694.05, 145,854.63 and 57,945.77

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Solution

The fourth proportional to 105,694.05, 145,854.63 and 57,945.77 is: 79,963.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,694.05 : 145,854.63 = 57,945.77 : x
  2. Step 2: Convert to fraction form
    105,694.05/145,854.63 = 57,945.77/x
  3. Step 3: Cross multiply
    105,694.05x = 145,854.63 × 57,945.77
  4. Step 4: Simplify right side
    105,694.05x = 8,451,658,114.14
  5. Step 5: Solve for x
    x = 8,451,658,114.14/105,694.05
  6. Step 6: Final answer
    x = 79,963.42

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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.