Home / 123,940.16-185,936.64-35,220.80

Finding the Fourth Proportional to 123,940.16, 185,936.64 and 35,220.80

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Solution

The fourth proportional to 123,940.16, 185,936.64 and 35,220.80 is: 52,838.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,940.16 : 185,936.64 = 35,220.80 : x
  2. Step 2: Convert to fraction form
    123,940.16/185,936.64 = 35,220.80/x
  3. Step 3: Cross multiply
    123,940.16x = 185,936.64 × 35,220.80
  4. Step 4: Simplify right side
    123,940.16x = 6,548,837,210.11
  5. Step 5: Solve for x
    x = 6,548,837,210.11/123,940.16
  6. Step 6: Final answer
    x = 52,838.70

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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.