Home / 79,884.06-119,171.90-77,712.27

Finding the Fourth Proportional to 79,884.06, 119,171.90 and 77,712.27

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Solution

The fourth proportional to 79,884.06, 119,171.90 and 77,712.27 is: 115,932.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,884.06 : 119,171.90 = 77,712.27 : x
  2. Step 2: Convert to fraction form
    79,884.06/119,171.90 = 77,712.27/x
  3. Step 3: Cross multiply
    79,884.06x = 119,171.90 × 77,712.27
  4. Step 4: Simplify right side
    79,884.06x = 9,261,118,480.65
  5. Step 5: Solve for x
    x = 9,261,118,480.65/79,884.06
  6. Step 6: Final answer
    x = 115,932.00

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.