Home / 100,234.24-138,323.42-54,911.23

Finding the Fourth Proportional to 100,234.24, 138,323.42 and 54,911.23

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Solution

The fourth proportional to 100,234.24, 138,323.42 and 54,911.23 is: 75,777.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,234.24 : 138,323.42 = 54,911.23 : x
  2. Step 2: Convert to fraction form
    100,234.24/138,323.42 = 54,911.23/x
  3. Step 3: Cross multiply
    100,234.24x = 138,323.42 × 54,911.23
  4. Step 4: Simplify right side
    100,234.24x = 7,595,509,130.01
  5. Step 5: Solve for x
    x = 7,595,509,130.01/100,234.24
  6. Step 6: Final answer
    x = 75,777.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.