Home / 149,558.38-206,393.02-81,575.35

Finding the Fourth Proportional to 149,558.38, 206,393.02 and 81,575.35

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Solution

The fourth proportional to 149,558.38, 206,393.02 and 81,575.35 is: 112,575.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,558.38 : 206,393.02 = 81,575.35 : x
  2. Step 2: Convert to fraction form
    149,558.38/206,393.02 = 81,575.35/x
  3. Step 3: Cross multiply
    149,558.38x = 206,393.02 × 81,575.35
  4. Step 4: Simplify right side
    149,558.38x = 16,836,582,124.14
  5. Step 5: Solve for x
    x = 16,836,582,124.14/149,558.38
  6. Step 6: Final answer
    x = 112,575.32

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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.