Home / 91,857.24-137,668.41-79,962.39

Finding the Fourth Proportional to 91,857.24, 137,668.41 and 79,962.39

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Solution

The fourth proportional to 91,857.24, 137,668.41 and 79,962.39 is: 119,841.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,857.24 : 137,668.41 = 79,962.39 : x
  2. Step 2: Convert to fraction form
    91,857.24/137,668.41 = 79,962.39/x
  3. Step 3: Cross multiply
    91,857.24x = 137,668.41 × 79,962.39
  4. Step 4: Simplify right side
    91,857.24x = 11,008,295,091.10
  5. Step 5: Solve for x
    x = 11,008,295,091.10/91,857.24
  6. Step 6: Final answer
    x = 119,841.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.