Home / 225,113.85-310,644.05-123,120.27

Finding the Fourth Proportional to 225,113.85, 310,644.05 and 123,120.27

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Solution

The fourth proportional to 225,113.85, 310,644.05 and 123,120.27 is: 169,898.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,113.85 : 310,644.05 = 123,120.27 : x
  2. Step 2: Convert to fraction form
    225,113.85/310,644.05 = 123,120.27/x
  3. Step 3: Cross multiply
    225,113.85x = 310,644.05 × 123,120.27
  4. Step 4: Simplify right side
    225,113.85x = 38,246,578,694.29
  5. Step 5: Solve for x
    x = 38,246,578,694.29/225,113.85
  6. Step 6: Final answer
    x = 169,898.83

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1.5x scale

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.