Home / 84,208.14-126,226.74-71,918.58

Finding the Fourth Proportional to 84,208.14, 126,226.74 and 71,918.58

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Solution

The fourth proportional to 84,208.14, 126,226.74 and 71,918.58 is: 107,804.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,208.14 : 126,226.74 = 71,918.58 : x
  2. Step 2: Convert to fraction form
    84,208.14/126,226.74 = 71,918.58/x
  3. Step 3: Cross multiply
    84,208.14x = 126,226.74 × 71,918.58
  4. Step 4: Simplify right side
    84,208.14x = 9,078,047,898.83
  5. Step 5: Solve for x
    x = 9,078,047,898.83/84,208.14
  6. Step 6: Final answer
    x = 107,804.87

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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.