Home / 234,821.37-351,951.80-128,232.16

Finding the Fourth Proportional to 234,821.37, 351,951.80 and 128,232.16

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Solution

The fourth proportional to 234,821.37, 351,951.80 and 128,232.16 is: 192,195.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,821.37 : 351,951.80 = 128,232.16 : x
  2. Step 2: Convert to fraction form
    234,821.37/351,951.80 = 128,232.16/x
  3. Step 3: Cross multiply
    234,821.37x = 351,951.80 × 128,232.16
  4. Step 4: Simplify right side
    234,821.37x = 45,131,537,128.97
  5. Step 5: Solve for x
    x = 45,131,537,128.97/234,821.37
  6. Step 6: Final answer
    x = 192,195.19

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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.