Home / 120,181.66-180,145.37-45,269.39

Finding the Fourth Proportional to 120,181.66, 180,145.37 and 45,269.39

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Solution

The fourth proportional to 120,181.66, 180,145.37 and 45,269.39 is: 67,856.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,181.66 : 180,145.37 = 45,269.39 : x
  2. Step 2: Convert to fraction form
    120,181.66/180,145.37 = 45,269.39/x
  3. Step 3: Cross multiply
    120,181.66x = 180,145.37 × 45,269.39
  4. Step 4: Simplify right side
    120,181.66x = 8,155,070,813.46
  5. Step 5: Solve for x
    x = 8,155,070,813.46/120,181.66
  6. Step 6: Final answer
    x = 67,856.20

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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.