Home / 156,067.40-234,101.10-85,208.60

Finding the Fourth Proportional to 156,067.40, 234,101.10 and 85,208.60

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Solution

The fourth proportional to 156,067.40, 234,101.10 and 85,208.60 is: 127,812.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,067.40 : 234,101.10 = 85,208.60 : x
  2. Step 2: Convert to fraction form
    156,067.40/234,101.10 = 85,208.60/x
  3. Step 3: Cross multiply
    156,067.40x = 234,101.10 × 85,208.60
  4. Step 4: Simplify right side
    156,067.40x = 19,947,426,989.46
  5. Step 5: Solve for x
    x = 19,947,426,989.46/156,067.40
  6. Step 6: Final answer
    x = 127,812.90

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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.