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Finding the Fourth Proportional to 138,452.44, 191,064.41 and 74,790.22

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Solution

The fourth proportional to 138,452.44, 191,064.41 and 74,790.22 is: 103,210.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,452.44 : 191,064.41 = 74,790.22 : x
  2. Step 2: Convert to fraction form
    138,452.44/191,064.41 = 74,790.22/x
  3. Step 3: Cross multiply
    138,452.44x = 191,064.41 × 74,790.22
  4. Step 4: Simplify right side
    138,452.44x = 14,289,749,258.07
  5. Step 5: Solve for x
    x = 14,289,749,258.07/138,452.44
  6. Step 6: Final answer
    x = 103,210.53

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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.