Home / 120,671.86-181,016.45-31,924.31

Finding the Fourth Proportional to 120,671.86, 181,016.45 and 31,924.31

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Solution

The fourth proportional to 120,671.86, 181,016.45 and 31,924.31 is: 47,888.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,671.86 : 181,016.45 = 31,924.31 : x
  2. Step 2: Convert to fraction form
    120,671.86/181,016.45 = 31,924.31/x
  3. Step 3: Cross multiply
    120,671.86x = 181,016.45 × 31,924.31
  4. Step 4: Simplify right side
    120,671.86x = 5,778,825,677.54
  5. Step 5: Solve for x
    x = 5,778,825,677.54/120,671.86
  6. Step 6: Final answer
    x = 47,888.76

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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.