Home / 193,223.31-266,663.64-107,190.78

Finding the Fourth Proportional to 193,223.31, 266,663.64 and 107,190.78

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Solution

The fourth proportional to 193,223.31, 266,663.64 and 107,190.78 is: 147,931.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,223.31 : 266,663.64 = 107,190.78 : x
  2. Step 2: Convert to fraction form
    193,223.31/266,663.64 = 107,190.78/x
  3. Step 3: Cross multiply
    193,223.31x = 266,663.64 × 107,190.78
  4. Step 4: Simplify right side
    193,223.31x = 28,583,883,569.24
  5. Step 5: Solve for x
    x = 28,583,883,569.24/193,223.31
  6. Step 6: Final answer
    x = 147,931.86

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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.