Home / 99,338.57-149,004.51-43,178.64

Finding the Fourth Proportional to 99,338.57, 149,004.51 and 43,178.64

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Solution

The fourth proportional to 99,338.57, 149,004.51 and 43,178.64 is: 64,766.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,338.57 : 149,004.51 = 43,178.64 : x
  2. Step 2: Convert to fraction form
    99,338.57/149,004.51 = 43,178.64/x
  3. Step 3: Cross multiply
    99,338.57x = 149,004.51 × 43,178.64
  4. Step 4: Simplify right side
    99,338.57x = 6,433,812,095.67
  5. Step 5: Solve for x
    x = 6,433,812,095.67/99,338.57
  6. Step 6: Final answer
    x = 64,766.51

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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.