Home / 189,267.65-261,205.05-108,710.72

Finding the Fourth Proportional to 189,267.65, 261,205.05 and 108,710.72

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Solution

The fourth proportional to 189,267.65, 261,205.05 and 108,710.72 is: 150,029.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,267.65 : 261,205.05 = 108,710.72 : x
  2. Step 2: Convert to fraction form
    189,267.65/261,205.05 = 108,710.72/x
  3. Step 3: Cross multiply
    189,267.65x = 261,205.05 × 108,710.72
  4. Step 4: Simplify right side
    189,267.65x = 28,395,789,053.14
  5. Step 5: Solve for x
    x = 28,395,789,053.14/189,267.65
  6. Step 6: Final answer
    x = 150,029.81

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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.