Home / 133,074.40-199,511.76-80,473.12

Finding the Fourth Proportional to 133,074.40, 199,511.76 and 80,473.12

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Solution

The fourth proportional to 133,074.40, 199,511.76 and 80,473.12 is: 120,649.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,074.40 : 199,511.76 = 80,473.12 : x
  2. Step 2: Convert to fraction form
    133,074.40/199,511.76 = 80,473.12/x
  3. Step 3: Cross multiply
    133,074.40x = 199,511.76 × 80,473.12
  4. Step 4: Simplify right side
    133,074.40x = 16,055,333,803.89
  5. Step 5: Solve for x
    x = 16,055,333,803.89/133,074.40
  6. Step 6: Final answer
    x = 120,649.30

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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.