Home / 259,161.28-388,740.37-67,035.72

Finding the Fourth Proportional to 259,161.28, 388,740.37 and 67,035.72

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Solution

The fourth proportional to 259,161.28, 388,740.37 and 67,035.72 is: 100,553.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,161.28 : 388,740.37 = 67,035.72 : x
  2. Step 2: Convert to fraction form
    259,161.28/388,740.37 = 67,035.72/x
  3. Step 3: Cross multiply
    259,161.28x = 388,740.37 × 67,035.72
  4. Step 4: Simplify right side
    259,161.28x = 26,059,490,596.02
  5. Step 5: Solve for x
    x = 26,059,490,596.02/259,161.28
  6. Step 6: Final answer
    x = 100,553.18

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1.5x scale

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.