Home / 120,979.26-181,114.02-84,830.37

Finding the Fourth Proportional to 120,979.26, 181,114.02 and 84,830.37

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Solution

The fourth proportional to 120,979.26, 181,114.02 and 84,830.37 is: 126,996.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,979.26 : 181,114.02 = 84,830.37 : x
  2. Step 2: Convert to fraction form
    120,979.26/181,114.02 = 84,830.37/x
  3. Step 3: Cross multiply
    120,979.26x = 181,114.02 × 84,830.37
  4. Step 4: Simplify right side
    120,979.26x = 15,363,968,423.22
  5. Step 5: Solve for x
    x = 15,363,968,423.22/120,979.26
  6. Step 6: Final answer
    x = 126,996.72

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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.