Home / 120,939.36-181,403.28-36,695.76

Finding the Fourth Proportional to 120,939.36, 181,403.28 and 36,695.76

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Solution

The fourth proportional to 120,939.36, 181,403.28 and 36,695.76 is: 55,041.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,939.36 : 181,403.28 = 36,695.76 : x
  2. Step 2: Convert to fraction form
    120,939.36/181,403.28 = 36,695.76/x
  3. Step 3: Cross multiply
    120,939.36x = 181,403.28 × 36,695.76
  4. Step 4: Simplify right side
    120,939.36x = 6,656,731,226.09
  5. Step 5: Solve for x
    x = 6,656,731,226.09/120,939.36
  6. Step 6: Final answer
    x = 55,041.89

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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.