Home / 183,731.80-274,983.30-128,435.80

Finding the Fourth Proportional to 183,731.80, 274,983.30 and 128,435.80

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Solution

The fourth proportional to 183,731.80, 274,983.30 and 128,435.80 is: 192,224.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,731.80 : 274,983.30 = 128,435.80 : x
  2. Step 2: Convert to fraction form
    183,731.80/274,983.30 = 128,435.80/x
  3. Step 3: Cross multiply
    183,731.80x = 274,983.30 × 128,435.80
  4. Step 4: Simplify right side
    183,731.80x = 35,317,700,122.14
  5. Step 5: Solve for x
    x = 35,317,700,122.14/183,731.80
  6. Step 6: Final answer
    x = 192,224.21

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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.