Home / 99,756.70-149,550.77-46,421.15

Finding the Fourth Proportional to 99,756.70, 149,550.77 and 46,421.15

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Solution

The fourth proportional to 99,756.70, 149,550.77 and 46,421.15 is: 69,592.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,756.70 : 149,550.77 = 46,421.15 : x
  2. Step 2: Convert to fraction form
    99,756.70/149,550.77 = 46,421.15/x
  3. Step 3: Cross multiply
    99,756.70x = 149,550.77 × 46,421.15
  4. Step 4: Simplify right side
    99,756.70x = 6,942,318,936.31
  5. Step 5: Solve for x
    x = 6,942,318,936.31/99,756.70
  6. Step 6: Final answer
    x = 69,592.51

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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.