Home / 156,404.27-234,639.21-67,670.39

Finding the Fourth Proportional to 156,404.27, 234,639.21 and 67,670.39

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Solution

The fourth proportional to 156,404.27, 234,639.21 and 67,670.39 is: 101,519.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,404.27 : 234,639.21 = 67,670.39 : x
  2. Step 2: Convert to fraction form
    156,404.27/234,639.21 = 67,670.39/x
  3. Step 3: Cross multiply
    156,404.27x = 234,639.21 × 67,670.39
  4. Step 4: Simplify right side
    156,404.27x = 15,878,125,676.80
  5. Step 5: Solve for x
    x = 15,878,125,676.80/156,404.27
  6. Step 6: Final answer
    x = 101,519.77

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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.