Home / 120,436.80-180,582.30-53,864.52

Finding the Fourth Proportional to 120,436.80, 180,582.30 and 53,864.52

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Solution

The fourth proportional to 120,436.80, 180,582.30 and 53,864.52 is: 80,764.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,436.80 : 180,582.30 = 53,864.52 : x
  2. Step 2: Convert to fraction form
    120,436.80/180,582.30 = 53,864.52/x
  3. Step 3: Cross multiply
    120,436.80x = 180,582.30 × 53,864.52
  4. Step 4: Simplify right side
    120,436.80x = 9,726,978,910.00
  5. Step 5: Solve for x
    x = 9,726,978,910.00/120,436.80
  6. Step 6: Final answer
    x = 80,764.18

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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.