Home / 149,832.29-206,760.25-81,835.72

Finding the Fourth Proportional to 149,832.29, 206,760.25 and 81,835.72

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Solution

The fourth proportional to 149,832.29, 206,760.25 and 81,835.72 is: 112,928.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,832.29 : 206,760.25 = 81,835.72 : x
  2. Step 2: Convert to fraction form
    149,832.29/206,760.25 = 81,835.72/x
  3. Step 3: Cross multiply
    149,832.29x = 206,760.25 × 81,835.72
  4. Step 4: Simplify right side
    149,832.29x = 16,920,373,926.13
  5. Step 5: Solve for x
    x = 16,920,373,926.13/149,832.29
  6. Step 6: Final answer
    x = 112,928.75

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1.5x scale

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.