Home / 149,858.42-206,798.20-81,874.31

Finding the Fourth Proportional to 149,858.42, 206,798.20 and 81,874.31

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Solution

The fourth proportional to 149,858.42, 206,798.20 and 81,874.31 is: 112,983.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,858.42 : 206,798.20 = 81,874.31 : x
  2. Step 2: Convert to fraction form
    149,858.42/206,798.20 = 81,874.31/x
  3. Step 3: Cross multiply
    149,858.42x = 206,798.20 × 81,874.31
  4. Step 4: Simplify right side
    149,858.42x = 16,931,458,695.57
  5. Step 5: Solve for x
    x = 16,931,458,695.57/149,858.42
  6. Step 6: Final answer
    x = 112,983.04

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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.