Home / 155,287.82-214,431.64-147,316.16

Finding the Fourth Proportional to 155,287.82, 214,431.64 and 147,316.16

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Solution

The fourth proportional to 155,287.82, 214,431.64 and 147,316.16 is: 203,423.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,287.82 : 214,431.64 = 147,316.16 : x
  2. Step 2: Convert to fraction form
    155,287.82/214,431.64 = 147,316.16/x
  3. Step 3: Cross multiply
    155,287.82x = 214,431.64 × 147,316.16
  4. Step 4: Simplify right side
    155,287.82x = 31,589,245,787.30
  5. Step 5: Solve for x
    x = 31,589,245,787.30/155,287.82
  6. Step 6: Final answer
    x = 203,423.85

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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.