Home / 109,968.20-164,952.30-100,126.70

Finding the Fourth Proportional to 109,968.20, 164,952.30 and 100,126.70

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Solution

The fourth proportional to 109,968.20, 164,952.30 and 100,126.70 is: 150,190.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,968.20 : 164,952.30 = 100,126.70 : x
  2. Step 2: Convert to fraction form
    109,968.20/164,952.30 = 100,126.70/x
  3. Step 3: Cross multiply
    109,968.20x = 164,952.30 × 100,126.70
  4. Step 4: Simplify right side
    109,968.20x = 16,516,129,456.41
  5. Step 5: Solve for x
    x = 16,516,129,456.41/109,968.20
  6. Step 6: Final answer
    x = 150,190.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.