Home / 120,733.70-181,092.45-31,985.30

Finding the Fourth Proportional to 120,733.70, 181,092.45 and 31,985.30

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Solution

The fourth proportional to 120,733.70, 181,092.45 and 31,985.30 is: 47,975.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,733.70 : 181,092.45 = 31,985.30 : x
  2. Step 2: Convert to fraction form
    120,733.70/181,092.45 = 31,985.30/x
  3. Step 3: Cross multiply
    120,733.70x = 181,092.45 × 31,985.30
  4. Step 4: Simplify right side
    120,733.70x = 5,792,296,340.99
  5. Step 5: Solve for x
    x = 5,792,296,340.99/120,733.70
  6. Step 6: Final answer
    x = 47,975.80

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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.