Home / 259,057.36-388,586.76-72,069.04

Finding the Fourth Proportional to 259,057.36, 388,586.76 and 72,069.04

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Solution

The fourth proportional to 259,057.36, 388,586.76 and 72,069.04 is: 108,103.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,057.36 : 388,586.76 = 72,069.04 : x
  2. Step 2: Convert to fraction form
    259,057.36/388,586.76 = 72,069.04/x
  3. Step 3: Cross multiply
    259,057.36x = 388,586.76 × 72,069.04
  4. Step 4: Simplify right side
    259,057.36x = 28,005,074,749.91
  5. Step 5: Solve for x
    x = 28,005,074,749.91/259,057.36
  6. Step 6: Final answer
    x = 108,103.76

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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.