Home / 99,361.17-149,043.45-28,285.62

Finding the Fourth Proportional to 99,361.17, 149,043.45 and 28,285.62

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Solution

The fourth proportional to 99,361.17, 149,043.45 and 28,285.62 is: 42,428.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,361.17 : 149,043.45 = 28,285.62 : x
  2. Step 2: Convert to fraction form
    99,361.17/149,043.45 = 28,285.62/x
  3. Step 3: Cross multiply
    99,361.17x = 149,043.45 × 28,285.62
  4. Step 4: Simplify right side
    99,361.17x = 4,215,786,390.19
  5. Step 5: Solve for x
    x = 4,215,786,390.19/99,361.17
  6. Step 6: Final answer
    x = 42,428.91

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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.