Home / 149,746.55-206,658.60-81,769.85

Finding the Fourth Proportional to 149,746.55, 206,658.60 and 81,769.85

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Solution

The fourth proportional to 149,746.55, 206,658.60 and 81,769.85 is: 112,846.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,746.55 : 206,658.60 = 81,769.85 : x
  2. Step 2: Convert to fraction form
    149,746.55/206,658.60 = 81,769.85/x
  3. Step 3: Cross multiply
    149,746.55x = 206,658.60 × 81,769.85
  4. Step 4: Simplify right side
    149,746.55x = 16,898,441,689.92
  5. Step 5: Solve for x
    x = 16,898,441,689.92/149,746.55
  6. Step 6: Final answer
    x = 112,846.96

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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.