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Finding the Fourth Proportional to 99,804.80, 149,768.76 and 46,487.36

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Solution

The fourth proportional to 99,804.80, 149,768.76 and 46,487.36 is: 69,759.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,804.80 : 149,768.76 = 46,487.36 : x
  2. Step 2: Convert to fraction form
    99,804.80/149,768.76 = 46,487.36/x
  3. Step 3: Cross multiply
    99,804.80x = 149,768.76 × 46,487.36
  4. Step 4: Simplify right side
    99,804.80x = 6,962,354,262.87
  5. Step 5: Solve for x
    x = 6,962,354,262.87/99,804.80
  6. Step 6: Final answer
    x = 69,759.71

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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.