Home / 149,609.60-206,461.02-81,626.62

Finding the Fourth Proportional to 149,609.60, 206,461.02 and 81,626.62

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Solution

The fourth proportional to 149,609.60, 206,461.02 and 81,626.62 is: 112,644.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,609.60 : 206,461.02 = 81,626.62 : x
  2. Step 2: Convert to fraction form
    149,609.60/206,461.02 = 81,626.62/x
  3. Step 3: Cross multiply
    149,609.60x = 206,461.02 × 81,626.62
  4. Step 4: Simplify right side
    149,609.60x = 16,852,715,224.35
  5. Step 5: Solve for x
    x = 16,852,715,224.35/149,609.60
  6. Step 6: Final answer
    x = 112,644.61

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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.