Home / 215,753.40-297,738.72-125,161.92

Finding the Fourth Proportional to 215,753.40, 297,738.72 and 125,161.92

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Solution

The fourth proportional to 215,753.40, 297,738.72 and 125,161.92 is: 172,722.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,753.40 : 297,738.72 = 125,161.92 : x
  2. Step 2: Convert to fraction form
    215,753.40/297,738.72 = 125,161.92/x
  3. Step 3: Cross multiply
    215,753.40x = 297,738.72 × 125,161.92
  4. Step 4: Simplify right side
    215,753.40x = 37,265,549,853.54
  5. Step 5: Solve for x
    x = 37,265,549,853.54/215,753.40
  6. Step 6: Final answer
    x = 172,722.89

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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.