Home / 155,321.30-232,640.46-128,361.75

Finding the Fourth Proportional to 155,321.30, 232,640.46 and 128,361.75

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Solution

The fourth proportional to 155,321.30, 232,640.46 and 128,361.75 is: 192,260.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,321.30 : 232,640.46 = 128,361.75 : x
  2. Step 2: Convert to fraction form
    155,321.30/232,640.46 = 128,361.75/x
  3. Step 3: Cross multiply
    155,321.30x = 232,640.46 × 128,361.75
  4. Step 4: Simplify right side
    155,321.30x = 29,862,136,566.41
  5. Step 5: Solve for x
    x = 29,862,136,566.41/155,321.30
  6. Step 6: Final answer
    x = 192,260.41

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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.