Home / 226,503.91-312,577.41-123,138.31

Finding the Fourth Proportional to 226,503.91, 312,577.41 and 123,138.31

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Solution

The fourth proportional to 226,503.91, 312,577.41 and 123,138.31 is: 169,931.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,503.91 : 312,577.41 = 123,138.31 : x
  2. Step 2: Convert to fraction form
    226,503.91/312,577.41 = 123,138.31/x
  3. Step 3: Cross multiply
    226,503.91x = 312,577.41 × 123,138.31
  4. Step 4: Simplify right side
    226,503.91x = 38,490,255,336.93
  5. Step 5: Solve for x
    x = 38,490,255,336.93/226,503.91
  6. Step 6: Final answer
    x = 169,931.97

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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.