Home / 150,589.02-207,778-90,136.70

Finding the Fourth Proportional to 150,589.02, 207,778 and 90,136.70

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Solution

The fourth proportional to 150,589.02, 207,778 and 90,136.70 is: 124,367.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,589.02 : 207,778 = 90,136.70 : x
  2. Step 2: Convert to fraction form
    150,589.02/207,778 = 90,136.70/x
  3. Step 3: Cross multiply
    150,589.02x = 207,778 × 90,136.70
  4. Step 4: Simplify right side
    150,589.02x = 18,728,423,252.60
  5. Step 5: Solve for x
    x = 18,728,423,252.60/150,589.02
  6. Step 6: Final answer
    x = 124,367.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.