Home / 259,104.48-388,604.88-72,065.76

Finding the Fourth Proportional to 259,104.48, 388,604.88 and 72,065.76

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Solution

The fourth proportional to 259,104.48, 388,604.88 and 72,065.76 is: 108,084.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,104.48 : 388,604.88 = 72,065.76 : x
  2. Step 2: Convert to fraction form
    259,104.48/388,604.88 = 72,065.76/x
  3. Step 3: Cross multiply
    259,104.48x = 388,604.88 × 72,065.76
  4. Step 4: Simplify right side
    259,104.48x = 28,005,106,016.91
  5. Step 5: Solve for x
    x = 28,005,106,016.91/259,104.48
  6. Step 6: Final answer
    x = 108,084.22

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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.