Home / 149,645.75-206,226.20-107,130.47

Finding the Fourth Proportional to 149,645.75, 206,226.20 and 107,130.47

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Solution

The fourth proportional to 149,645.75, 206,226.20 and 107,130.47 is: 147,636.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,645.75 : 206,226.20 = 107,130.47 : x
  2. Step 2: Convert to fraction form
    149,645.75/206,226.20 = 107,130.47/x
  3. Step 3: Cross multiply
    149,645.75x = 206,226.20 × 107,130.47
  4. Step 4: Simplify right side
    149,645.75x = 22,093,108,969.01
  5. Step 5: Solve for x
    x = 22,093,108,969.01/149,645.75
  6. Step 6: Final answer
    x = 147,636.07

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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.