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Finding the Fourth Proportional to 110,600, 152,630.40 and 60,299.20

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Solution

The fourth proportional to 110,600, 152,630.40 and 60,299.20 is: 83,214.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,600 : 152,630.40 = 60,299.20 : x
  2. Step 2: Convert to fraction form
    110,600/152,630.40 = 60,299.20/x
  3. Step 3: Cross multiply
    110,600x = 152,630.40 × 60,299.20
  4. Step 4: Simplify right side
    110,600x = 9,203,491,015.68
  5. Step 5: Solve for x
    x = 9,203,491,015.68/110,600
  6. Step 6: Final answer
    x = 83,214.20

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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.