Home / 138,674.25-191,370.24-75,012.03

Finding the Fourth Proportional to 138,674.25, 191,370.24 and 75,012.03

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Solution

The fourth proportional to 138,674.25, 191,370.24 and 75,012.03 is: 103,516.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,674.25 : 191,370.24 = 75,012.03 : x
  2. Step 2: Convert to fraction form
    138,674.25/191,370.24 = 75,012.03/x
  3. Step 3: Cross multiply
    138,674.25x = 191,370.24 × 75,012.03
  4. Step 4: Simplify right side
    138,674.25x = 14,355,070,183.99
  5. Step 5: Solve for x
    x = 14,355,070,183.99/138,674.25
  6. Step 6: Final answer
    x = 103,516.48

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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.