Home / 101,992.86-152,989.26-31,872.18

Finding the Fourth Proportional to 101,992.86, 152,989.26 and 31,872.18

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Solution

The fourth proportional to 101,992.86, 152,989.26 and 31,872.18 is: 47,808.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,992.86 : 152,989.26 = 31,872.18 : x
  2. Step 2: Convert to fraction form
    101,992.86/152,989.26 = 31,872.18/x
  3. Step 3: Cross multiply
    101,992.86x = 152,989.26 × 31,872.18
  4. Step 4: Simplify right side
    101,992.86x = 4,876,101,232.79
  5. Step 5: Solve for x
    x = 4,876,101,232.79/101,992.86
  6. Step 6: Final answer
    x = 47,808.26

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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.