Home / 129,644.04-178,908.76-73,057.44

Finding the Fourth Proportional to 129,644.04, 178,908.76 and 73,057.44

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Solution

The fourth proportional to 129,644.04, 178,908.76 and 73,057.44 is: 100,819.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,644.04 : 178,908.76 = 73,057.44 : x
  2. Step 2: Convert to fraction form
    129,644.04/178,908.76 = 73,057.44/x
  3. Step 3: Cross multiply
    129,644.04x = 178,908.76 × 73,057.44
  4. Step 4: Simplify right side
    129,644.04x = 13,070,615,999.17
  5. Step 5: Solve for x
    x = 13,070,615,999.17/129,644.04
  6. Step 6: Final answer
    x = 100,819.26

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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.