Home / 99,123.72-149,428.38-92,524.86

Finding the Fourth Proportional to 99,123.72, 149,428.38 and 92,524.86

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Solution

The fourth proportional to 99,123.72, 149,428.38 and 92,524.86 is: 139,480.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,123.72 : 149,428.38 = 92,524.86 : x
  2. Step 2: Convert to fraction form
    99,123.72/149,428.38 = 92,524.86/x
  3. Step 3: Cross multiply
    99,123.72x = 149,428.38 × 92,524.86
  4. Step 4: Simplify right side
    99,123.72x = 13,825,839,939.53
  5. Step 5: Solve for x
    x = 13,825,839,939.53/99,123.72
  6. Step 6: Final answer
    x = 139,480.64

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.