Home / 99,456.40-149,184.60-57,408.40

Finding the Fourth Proportional to 99,456.40, 149,184.60 and 57,408.40

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Solution

The fourth proportional to 99,456.40, 149,184.60 and 57,408.40 is: 86,112.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,456.40 : 149,184.60 = 57,408.40 : x
  2. Step 2: Convert to fraction form
    99,456.40/149,184.60 = 57,408.40/x
  3. Step 3: Cross multiply
    99,456.40x = 149,184.60 × 57,408.40
  4. Step 4: Simplify right side
    99,456.40x = 8,564,449,190.64
  5. Step 5: Solve for x
    x = 8,564,449,190.64/99,456.40
  6. Step 6: Final answer
    x = 86,112.60

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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.