Home / 259,065.08-388,595.46-72,076.04

Finding the Fourth Proportional to 259,065.08, 388,595.46 and 72,076.04

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Solution

The fourth proportional to 259,065.08, 388,595.46 and 72,076.04 is: 108,113.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,065.08 : 388,595.46 = 72,076.04 : x
  2. Step 2: Convert to fraction form
    259,065.08/388,595.46 = 72,076.04/x
  3. Step 3: Cross multiply
    259,065.08x = 388,595.46 × 72,076.04
  4. Step 4: Simplify right side
    259,065.08x = 28,008,421,918.78
  5. Step 5: Solve for x
    x = 28,008,421,918.78/259,065.08
  6. Step 6: Final answer
    x = 108,113.46

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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.