Home / 99,236.41-136,947.80-53,915.29

Finding the Fourth Proportional to 99,236.41, 136,947.80 and 53,915.29

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Solution

The fourth proportional to 99,236.41, 136,947.80 and 53,915.29 is: 74,403.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,236.41 : 136,947.80 = 53,915.29 : x
  2. Step 2: Convert to fraction form
    99,236.41/136,947.80 = 53,915.29/x
  3. Step 3: Cross multiply
    99,236.41x = 136,947.80 × 53,915.29
  4. Step 4: Simplify right side
    99,236.41x = 7,383,580,351.86
  5. Step 5: Solve for x
    x = 7,383,580,351.86/99,236.41
  6. Step 6: Final answer
    x = 74,403.94

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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.