Home / 149,722.24-206,604.28-85,174.30

Finding the Fourth Proportional to 149,722.24, 206,604.28 and 85,174.30

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Solution

The fourth proportional to 149,722.24, 206,604.28 and 85,174.30 is: 117,533.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,722.24 : 206,604.28 = 85,174.30 : x
  2. Step 2: Convert to fraction form
    149,722.24/206,604.28 = 85,174.30/x
  3. Step 3: Cross multiply
    149,722.24x = 206,604.28 × 85,174.30
  4. Step 4: Simplify right side
    149,722.24x = 17,597,374,926.00
  5. Step 5: Solve for x
    x = 17,597,374,926.00/149,722.24
  6. Step 6: Final answer
    x = 117,533.47

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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.