Home / 123,760.04-185,307.44-78,536.54

Finding the Fourth Proportional to 123,760.04, 185,307.44 and 78,536.54

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Solution

The fourth proportional to 123,760.04, 185,307.44 and 78,536.54 is: 117,593.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,760.04 : 185,307.44 = 78,536.54 : x
  2. Step 2: Convert to fraction form
    123,760.04/185,307.44 = 78,536.54/x
  3. Step 3: Cross multiply
    123,760.04x = 185,307.44 × 78,536.54
  4. Step 4: Simplify right side
    123,760.04x = 14,553,405,173.86
  5. Step 5: Solve for x
    x = 14,553,405,173.86/123,760.04
  6. Step 6: Final answer
    x = 117,593.73

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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.