Home / 99,942.07-149,991.78-46,606.61

Finding the Fourth Proportional to 99,942.07, 149,991.78 and 46,606.61

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Solution

The fourth proportional to 99,942.07, 149,991.78 and 46,606.61 is: 69,946.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,942.07 : 149,991.78 = 46,606.61 : x
  2. Step 2: Convert to fraction form
    99,942.07/149,991.78 = 46,606.61/x
  3. Step 3: Cross multiply
    99,942.07x = 149,991.78 × 46,606.61
  4. Step 4: Simplify right side
    99,942.07x = 6,990,607,706.47
  5. Step 5: Solve for x
    x = 6,990,607,706.47/99,942.07
  6. Step 6: Final answer
    x = 69,946.60

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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.