Home / 98,137.98-135,414.18-93,156.48

Finding the Fourth Proportional to 98,137.98, 135,414.18 and 93,156.48

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Solution

The fourth proportional to 98,137.98, 135,414.18 and 93,156.48 is: 128,540.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,137.98 : 135,414.18 = 93,156.48 : x
  2. Step 2: Convert to fraction form
    98,137.98/135,414.18 = 93,156.48/x
  3. Step 3: Cross multiply
    98,137.98x = 135,414.18 × 93,156.48
  4. Step 4: Simplify right side
    98,137.98x = 12,614,708,350.89
  5. Step 5: Solve for x
    x = 12,614,708,350.89/98,137.98
  6. Step 6: Final answer
    x = 128,540.53

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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.