Home / 103,679.53-155,556.78-36,221.56

Finding the Fourth Proportional to 103,679.53, 155,556.78 and 36,221.56

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Solution

The fourth proportional to 103,679.53, 155,556.78 and 36,221.56 is: 54,345.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,679.53 : 155,556.78 = 36,221.56 : x
  2. Step 2: Convert to fraction form
    103,679.53/155,556.78 = 36,221.56/x
  3. Step 3: Cross multiply
    103,679.53x = 155,556.78 × 36,221.56
  4. Step 4: Simplify right side
    103,679.53x = 5,634,509,240.18
  5. Step 5: Solve for x
    x = 5,634,509,240.18/103,679.53
  6. Step 6: Final answer
    x = 54,345.44

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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.