Home / 149,618.24-206,483.28-85,981.44

Finding the Fourth Proportional to 149,618.24, 206,483.28 and 85,981.44

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Solution

The fourth proportional to 149,618.24, 206,483.28 and 85,981.44 is: 118,660.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,618.24 : 206,483.28 = 85,981.44 : x
  2. Step 2: Convert to fraction form
    149,618.24/206,483.28 = 85,981.44/x
  3. Step 3: Cross multiply
    149,618.24x = 206,483.28 × 85,981.44
  4. Step 4: Simplify right side
    149,618.24x = 17,753,729,750.32
  5. Step 5: Solve for x
    x = 17,753,729,750.32/149,618.24
  6. Step 6: Final answer
    x = 118,660.20

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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.