Home / 131,213.52-196,820.35-72,422.84

Finding the Fourth Proportional to 131,213.52, 196,820.35 and 72,422.84

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Solution

The fourth proportional to 131,213.52, 196,820.35 and 72,422.84 is: 108,634.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,213.52 : 196,820.35 = 72,422.84 : x
  2. Step 2: Convert to fraction form
    131,213.52/196,820.35 = 72,422.84/x
  3. Step 3: Cross multiply
    131,213.52x = 196,820.35 × 72,422.84
  4. Step 4: Simplify right side
    131,213.52x = 14,254,289,027.79
  5. Step 5: Solve for x
    x = 14,254,289,027.79/131,213.52
  6. Step 6: Final answer
    x = 108,634.30

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1.5x scale

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.