Home / 123,048.64-184,515.18-73,135.36

Finding the Fourth Proportional to 123,048.64, 184,515.18 and 73,135.36

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Solution

The fourth proportional to 123,048.64, 184,515.18 and 73,135.36 is: 109,668.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,048.64 : 184,515.18 = 73,135.36 : x
  2. Step 2: Convert to fraction form
    123,048.64/184,515.18 = 73,135.36/x
  3. Step 3: Cross multiply
    123,048.64x = 184,515.18 × 73,135.36
  4. Step 4: Simplify right side
    123,048.64x = 13,494,584,114.76
  5. Step 5: Solve for x
    x = 13,494,584,114.76/123,048.64
  6. Step 6: Final answer
    x = 109,668.70

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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.