Home / 156,976.62-235,149.29-72,618.36

Finding the Fourth Proportional to 156,976.62, 235,149.29 and 72,618.36

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Solution

The fourth proportional to 156,976.62, 235,149.29 and 72,618.36 is: 108,781.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,976.62 : 235,149.29 = 72,618.36 : x
  2. Step 2: Convert to fraction form
    156,976.62/235,149.29 = 72,618.36/x
  3. Step 3: Cross multiply
    156,976.62x = 235,149.29 × 72,618.36
  4. Step 4: Simplify right side
    156,976.62x = 17,076,155,794.96
  5. Step 5: Solve for x
    x = 17,076,155,794.96/156,976.62
  6. Step 6: Final answer
    x = 108,781.52

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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.