Home / 123,192.15-184,529.75-78,190.36

Finding the Fourth Proportional to 123,192.15, 184,529.75 and 78,190.36

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Solution

The fourth proportional to 123,192.15, 184,529.75 and 78,190.36 is: 117,121.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,192.15 : 184,529.75 = 78,190.36 : x
  2. Step 2: Convert to fraction form
    123,192.15/184,529.75 = 78,190.36/x
  3. Step 3: Cross multiply
    123,192.15x = 184,529.75 × 78,190.36
  4. Step 4: Simplify right side
    123,192.15x = 14,428,447,583.21
  5. Step 5: Solve for x
    x = 14,428,447,583.21/123,192.15
  6. Step 6: Final answer
    x = 117,121.49

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1.5x scale

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.