Home / 181,633.72-272,525.64-80,378.68

Finding the Fourth Proportional to 181,633.72, 272,525.64 and 80,378.68

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Solution

The fourth proportional to 181,633.72, 272,525.64 and 80,378.68 is: 120,601.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,633.72 : 272,525.64 = 80,378.68 : x
  2. Step 2: Convert to fraction form
    181,633.72/272,525.64 = 80,378.68/x
  3. Step 3: Cross multiply
    181,633.72x = 272,525.64 × 80,378.68
  4. Step 4: Simplify right side
    181,633.72x = 21,905,251,209.36
  5. Step 5: Solve for x
    x = 21,905,251,209.36/181,633.72
  6. Step 6: Final answer
    x = 120,601.24

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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.