Home / 250,069.20-375,136.50-81,530.34

Finding the Fourth Proportional to 250,069.20, 375,136.50 and 81,530.34

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Solution

The fourth proportional to 250,069.20, 375,136.50 and 81,530.34 is: 122,306.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,069.20 : 375,136.50 = 81,530.34 : x
  2. Step 2: Convert to fraction form
    250,069.20/375,136.50 = 81,530.34/x
  3. Step 3: Cross multiply
    250,069.20x = 375,136.50 × 81,530.34
  4. Step 4: Simplify right side
    250,069.20x = 30,585,006,391.41
  5. Step 5: Solve for x
    x = 30,585,006,391.41/250,069.20
  6. Step 6: Final answer
    x = 122,306.17

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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.