Home / 149,621.88-206,599.50-142,856.76

Finding the Fourth Proportional to 149,621.88, 206,599.50 and 142,856.76

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Solution

The fourth proportional to 149,621.88, 206,599.50 and 142,856.76 is: 197,258.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,621.88 : 206,599.50 = 142,856.76 : x
  2. Step 2: Convert to fraction form
    149,621.88/206,599.50 = 142,856.76/x
  3. Step 3: Cross multiply
    149,621.88x = 206,599.50 × 142,856.76
  4. Step 4: Simplify right side
    149,621.88x = 29,514,135,187.62
  5. Step 5: Solve for x
    x = 29,514,135,187.62/149,621.88
  6. Step 6: Final answer
    x = 197,258.15

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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.