Home / 120,979.22-181,505.68-61,856.40

Finding the Fourth Proportional to 120,979.22, 181,505.68 and 61,856.40

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Solution

The fourth proportional to 120,979.22, 181,505.68 and 61,856.40 is: 92,803.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,979.22 : 181,505.68 = 61,856.40 : x
  2. Step 2: Convert to fraction form
    120,979.22/181,505.68 = 61,856.40/x
  3. Step 3: Cross multiply
    120,979.22x = 181,505.68 × 61,856.40
  4. Step 4: Simplify right side
    120,979.22x = 11,227,287,944.35
  5. Step 5: Solve for x
    x = 11,227,287,944.35/120,979.22
  6. Step 6: Final answer
    x = 92,803.44

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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.