Home / 120,080.26-180,092.85-45,208.18

Finding the Fourth Proportional to 120,080.26, 180,092.85 and 45,208.18

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Solution

The fourth proportional to 120,080.26, 180,092.85 and 45,208.18 is: 67,801.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,080.26 : 180,092.85 = 45,208.18 : x
  2. Step 2: Convert to fraction form
    120,080.26/180,092.85 = 45,208.18/x
  3. Step 3: Cross multiply
    120,080.26x = 180,092.85 × 45,208.18
  4. Step 4: Simplify right side
    120,080.26x = 8,141,669,979.51
  5. Step 5: Solve for x
    x = 8,141,669,979.51/120,080.26
  6. Step 6: Final answer
    x = 67,801.90

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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.