Home / 156,405.27-234,640.71-67,671.39

Finding the Fourth Proportional to 156,405.27, 234,640.71 and 67,671.39

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Solution

The fourth proportional to 156,405.27, 234,640.71 and 67,671.39 is: 101,521.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,405.27 : 234,640.71 = 67,671.39 : x
  2. Step 2: Convert to fraction form
    156,405.27/234,640.71 = 67,671.39/x
  3. Step 3: Cross multiply
    156,405.27x = 234,640.71 × 67,671.39
  4. Step 4: Simplify right side
    156,405.27x = 15,878,462,996.29
  5. Step 5: Solve for x
    x = 15,878,462,996.29/156,405.27
  6. Step 6: Final answer
    x = 101,521.28

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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.