Home / 149,803.62-206,444.79-107,288.34

Finding the Fourth Proportional to 149,803.62, 206,444.79 and 107,288.34

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Solution

The fourth proportional to 149,803.62, 206,444.79 and 107,288.34 is: 147,854.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,803.62 : 206,444.79 = 107,288.34 : x
  2. Step 2: Convert to fraction form
    149,803.62/206,444.79 = 107,288.34/x
  3. Step 3: Cross multiply
    149,803.62x = 206,444.79 × 107,288.34
  4. Step 4: Simplify right side
    149,803.62x = 22,149,118,820.75
  5. Step 5: Solve for x
    x = 22,149,118,820.75/149,803.62
  6. Step 6: Final answer
    x = 147,854.36

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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.