Home / 99,408.56-137,138.60-59,099.45

Finding the Fourth Proportional to 99,408.56, 137,138.60 and 59,099.45

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Solution

The fourth proportional to 99,408.56, 137,138.60 and 59,099.45 is: 81,530.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,408.56 : 137,138.60 = 59,099.45 : x
  2. Step 2: Convert to fraction form
    99,408.56/137,138.60 = 59,099.45/x
  3. Step 3: Cross multiply
    99,408.56x = 137,138.60 × 59,099.45
  4. Step 4: Simplify right side
    99,408.56x = 8,104,815,295.83
  5. Step 5: Solve for x
    x = 8,104,815,295.83/99,408.56
  6. Step 6: Final answer
    x = 81,530.36

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1.5x scale

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.