Home / 149,721.24-206,602.90-85,173.30

Finding the Fourth Proportional to 149,721.24, 206,602.90 and 85,173.30

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Solution

The fourth proportional to 149,721.24, 206,602.90 and 85,173.30 is: 117,532.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,721.24 : 206,602.90 = 85,173.30 : x
  2. Step 2: Convert to fraction form
    149,721.24/206,602.90 = 85,173.30/x
  3. Step 3: Cross multiply
    149,721.24x = 206,602.90 × 85,173.30
  4. Step 4: Simplify right side
    149,721.24x = 17,597,050,782.57
  5. Step 5: Solve for x
    x = 17,597,050,782.57/149,721.24
  6. Step 6: Final answer
    x = 117,532.09

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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.