Home / 121,107.46-181,651.86-53,660.38

Finding the Fourth Proportional to 121,107.46, 181,651.86 and 53,660.38

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Solution

The fourth proportional to 121,107.46, 181,651.86 and 53,660.38 is: 80,486.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,107.46 : 181,651.86 = 53,660.38 : x
  2. Step 2: Convert to fraction form
    121,107.46/181,651.86 = 53,660.38/x
  3. Step 3: Cross multiply
    121,107.46x = 181,651.86 × 53,660.38
  4. Step 4: Simplify right side
    121,107.46x = 9,747,507,835.31
  5. Step 5: Solve for x
    x = 9,747,507,835.31/121,107.46
  6. Step 6: Final answer
    x = 80,486.44

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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.