Home / 156,996.12-216,578.44-93,288.80

Finding the Fourth Proportional to 156,996.12, 216,578.44 and 93,288.80

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Solution

The fourth proportional to 156,996.12, 216,578.44 and 93,288.80 is: 128,693.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,996.12 : 216,578.44 = 93,288.80 : x
  2. Step 2: Convert to fraction form
    156,996.12/216,578.44 = 93,288.80/x
  3. Step 3: Cross multiply
    156,996.12x = 216,578.44 × 93,288.80
  4. Step 4: Simplify right side
    156,996.12x = 20,204,342,773.47
  5. Step 5: Solve for x
    x = 20,204,342,773.47/156,996.12
  6. Step 6: Final answer
    x = 128,693.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.