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Finding the Fourth Proportional to 156,067.60, 234,101.40 and 143,165.20

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Solution

The fourth proportional to 156,067.60, 234,101.40 and 143,165.20 is: 214,747.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,067.60 : 234,101.40 = 143,165.20 : x
  2. Step 2: Convert to fraction form
    156,067.60/234,101.40 = 143,165.20/x
  3. Step 3: Cross multiply
    156,067.60x = 234,101.40 × 143,165.20
  4. Step 4: Simplify right side
    156,067.60x = 33,515,173,751.28
  5. Step 5: Solve for x
    x = 33,515,173,751.28/156,067.60
  6. Step 6: Final answer
    x = 214,747.80

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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.