Home / 126,956.20-190,434.30-64,748.20

Finding the Fourth Proportional to 126,956.20, 190,434.30 and 64,748.20

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Solution

The fourth proportional to 126,956.20, 190,434.30 and 64,748.20 is: 97,122.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,956.20 : 190,434.30 = 64,748.20 : x
  2. Step 2: Convert to fraction form
    126,956.20/190,434.30 = 64,748.20/x
  3. Step 3: Cross multiply
    126,956.20x = 190,434.30 × 64,748.20
  4. Step 4: Simplify right side
    126,956.20x = 12,330,278,143.26
  5. Step 5: Solve for x
    x = 12,330,278,143.26/126,956.20
  6. Step 6: Final answer
    x = 97,122.30

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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.