Home / 120,724.24-181,089.79-31,977.76

Finding the Fourth Proportional to 120,724.24, 181,089.79 and 31,977.76

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Solution

The fourth proportional to 120,724.24, 181,089.79 and 31,977.76 is: 47,967.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,724.24 : 181,089.79 = 31,977.76 : x
  2. Step 2: Convert to fraction form
    120,724.24/181,089.79 = 31,977.76/x
  3. Step 3: Cross multiply
    120,724.24x = 181,089.79 × 31,977.76
  4. Step 4: Simplify right side
    120,724.24x = 5,790,844,970.86
  5. Step 5: Solve for x
    x = 5,790,844,970.86/120,724.24
  6. Step 6: Final answer
    x = 47,967.54

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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.