Home / 156,422.40-234,633.60-51,244.80

Finding the Fourth Proportional to 156,422.40, 234,633.60 and 51,244.80

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Solution

The fourth proportional to 156,422.40, 234,633.60 and 51,244.80 is: 76,867.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,422.40 : 234,633.60 = 51,244.80 : x
  2. Step 2: Convert to fraction form
    156,422.40/234,633.60 = 51,244.80/x
  3. Step 3: Cross multiply
    156,422.40x = 234,633.60 × 51,244.80
  4. Step 4: Simplify right side
    156,422.40x = 12,023,751,905.28
  5. Step 5: Solve for x
    x = 12,023,751,905.28/156,422.40
  6. Step 6: Final answer
    x = 76,867.20

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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.