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Finding the Fourth Proportional to 185,756.34, 256,341.48 and 100,874

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Solution

The fourth proportional to 185,756.34, 256,341.48 and 100,874 is: 139,204.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,756.34 : 256,341.48 = 100,874 : x
  2. Step 2: Convert to fraction form
    185,756.34/256,341.48 = 100,874/x
  3. Step 3: Cross multiply
    185,756.34x = 256,341.48 × 100,874
  4. Step 4: Simplify right side
    185,756.34x = 25,858,190,453.52
  5. Step 5: Solve for x
    x = 25,858,190,453.52/185,756.34
  6. Step 6: Final answer
    x = 139,204.89

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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.