Home / 80,196.11-110,666.68-45,742.20

Finding the Fourth Proportional to 80,196.11, 110,666.68 and 45,742.20

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Solution

The fourth proportional to 80,196.11, 110,666.68 and 45,742.20 is: 63,121.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,196.11 : 110,666.68 = 45,742.20 : x
  2. Step 2: Convert to fraction form
    80,196.11/110,666.68 = 45,742.20/x
  3. Step 3: Cross multiply
    80,196.11x = 110,666.68 × 45,742.20
  4. Step 4: Simplify right side
    80,196.11x = 5,062,137,409.90
  5. Step 5: Solve for x
    x = 5,062,137,409.90/80,196.11
  6. Step 6: Final answer
    x = 63,121.98

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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.