Home / 231,136.20-346,736.70-90,862.20

Finding the Fourth Proportional to 231,136.20, 346,736.70 and 90,862.20

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Solution

The fourth proportional to 231,136.20, 346,736.70 and 90,862.20 is: 136,306.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,136.20 : 346,736.70 = 90,862.20 : x
  2. Step 2: Convert to fraction form
    231,136.20/346,736.70 = 90,862.20/x
  3. Step 3: Cross multiply
    231,136.20x = 346,736.70 × 90,862.20
  4. Step 4: Simplify right side
    231,136.20x = 31,505,259,382.74
  5. Step 5: Solve for x
    x = 31,505,259,382.74/231,136.20
  6. Step 6: Final answer
    x = 136,306.04

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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.