Home / 84,171.97-126,095.14-70,500.83

Finding the Fourth Proportional to 84,171.97, 126,095.14 and 70,500.83

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Solution

The fourth proportional to 84,171.97, 126,095.14 and 70,500.83 is: 105,614.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,171.97 : 126,095.14 = 70,500.83 : x
  2. Step 2: Convert to fraction form
    84,171.97/126,095.14 = 70,500.83/x
  3. Step 3: Cross multiply
    84,171.97x = 126,095.14 × 70,500.83
  4. Step 4: Simplify right side
    84,171.97x = 8,889,811,486.62
  5. Step 5: Solve for x
    x = 8,889,811,486.62/84,171.97
  6. Step 6: Final answer
    x = 105,614.87

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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.