Home / 190,223.16-285,382.08-57,105.78

Finding the Fourth Proportional to 190,223.16, 285,382.08 and 57,105.78

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Solution

The fourth proportional to 190,223.16, 285,382.08 and 57,105.78 is: 85,672.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,223.16 : 285,382.08 = 57,105.78 : x
  2. Step 2: Convert to fraction form
    190,223.16/285,382.08 = 57,105.78/x
  3. Step 3: Cross multiply
    190,223.16x = 285,382.08 × 57,105.78
  4. Step 4: Simplify right side
    190,223.16x = 16,296,966,276.42
  5. Step 5: Solve for x
    x = 16,296,966,276.42/190,223.16
  6. Step 6: Final answer
    x = 85,672.88

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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.