Home / 105,194.68-145,167.92-57,448.04

Finding the Fourth Proportional to 105,194.68, 145,167.92 and 57,448.04

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Solution

The fourth proportional to 105,194.68, 145,167.92 and 57,448.04 is: 79,277.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,194.68 : 145,167.92 = 57,448.04 : x
  2. Step 2: Convert to fraction form
    105,194.68/145,167.92 = 57,448.04/x
  3. Step 3: Cross multiply
    105,194.68x = 145,167.92 × 57,448.04
  4. Step 4: Simplify right side
    105,194.68x = 8,339,612,474.88
  5. Step 5: Solve for x
    x = 8,339,612,474.88/105,194.68
  6. Step 6: Final answer
    x = 79,277.89

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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.