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Finding the Fourth Proportional to 101,451.77, 140,048.28 and 60,630.30

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Solution

The fourth proportional to 101,451.77, 140,048.28 and 60,630.30 is: 83,696.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,451.77 : 140,048.28 = 60,630.30 : x
  2. Step 2: Convert to fraction form
    101,451.77/140,048.28 = 60,630.30/x
  3. Step 3: Cross multiply
    101,451.77x = 140,048.28 × 60,630.30
  4. Step 4: Simplify right side
    101,451.77x = 8,491,169,230.88
  5. Step 5: Solve for x
    x = 8,491,169,230.88/101,451.77
  6. Step 6: Final answer
    x = 83,696.61

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1.5x scale

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.