Home / 109,003.20-150,415.12-61,252.80

Finding the Fourth Proportional to 109,003.20, 150,415.12 and 61,252.80

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Solution

The fourth proportional to 109,003.20, 150,415.12 and 61,252.80 is: 84,523.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,003.20 : 150,415.12 = 61,252.80 : x
  2. Step 2: Convert to fraction form
    109,003.20/150,415.12 = 61,252.80/x
  3. Step 3: Cross multiply
    109,003.20x = 150,415.12 × 61,252.80
  4. Step 4: Simplify right side
    109,003.20x = 9,213,347,262.34
  5. Step 5: Solve for x
    x = 9,213,347,262.34/109,003.20
  6. Step 6: Final answer
    x = 84,523.64

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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.