Home / 120,779.24-181,110.36-50,639.72

Finding the Fourth Proportional to 120,779.24, 181,110.36 and 50,639.72

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Solution

The fourth proportional to 120,779.24, 181,110.36 and 50,639.72 is: 75,935.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,779.24 : 181,110.36 = 50,639.72 : x
  2. Step 2: Convert to fraction form
    120,779.24/181,110.36 = 50,639.72/x
  3. Step 3: Cross multiply
    120,779.24x = 181,110.36 × 50,639.72
  4. Step 4: Simplify right side
    120,779.24x = 9,171,377,919.50
  5. Step 5: Solve for x
    x = 9,171,377,919.50/120,779.24
  6. Step 6: Final answer
    x = 75,935.05

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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.