Home / 156,404.36-234,398.91-81,504.39

Finding the Fourth Proportional to 156,404.36, 234,398.91 and 81,504.39

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Solution

The fourth proportional to 156,404.36, 234,398.91 and 81,504.39 is: 122,148.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,404.36 : 234,398.91 = 81,504.39 : x
  2. Step 2: Convert to fraction form
    156,404.36/234,398.91 = 81,504.39/x
  3. Step 3: Cross multiply
    156,404.36x = 234,398.91 × 81,504.39
  4. Step 4: Simplify right side
    156,404.36x = 19,104,540,176.21
  5. Step 5: Solve for x
    x = 19,104,540,176.21/156,404.36
  6. Step 6: Final answer
    x = 122,148.39

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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.