Home / 99,550.36-149,343.95-28,469.98

Finding the Fourth Proportional to 99,550.36, 149,343.95 and 28,469.98

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Solution

The fourth proportional to 99,550.36, 149,343.95 and 28,469.98 is: 42,710.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,550.36 : 149,343.95 = 28,469.98 : x
  2. Step 2: Convert to fraction form
    99,550.36/149,343.95 = 28,469.98/x
  3. Step 3: Cross multiply
    99,550.36x = 149,343.95 × 28,469.98
  4. Step 4: Simplify right side
    99,550.36x = 4,251,819,269.62
  5. Step 5: Solve for x
    x = 4,251,819,269.62/99,550.36
  6. Step 6: Final answer
    x = 42,710.23

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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.