Home / 149,611.18-206,471.40-85,953.10

Finding the Fourth Proportional to 149,611.18, 206,471.40 and 85,953.10

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Solution

The fourth proportional to 149,611.18, 206,471.40 and 85,953.10 is: 118,619.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,611.18 : 206,471.40 = 85,953.10 : x
  2. Step 2: Convert to fraction form
    149,611.18/206,471.40 = 85,953.10/x
  3. Step 3: Cross multiply
    149,611.18x = 206,471.40 × 85,953.10
  4. Step 4: Simplify right side
    149,611.18x = 17,746,856,891.34
  5. Step 5: Solve for x
    x = 17,746,856,891.34/149,611.18
  6. Step 6: Final answer
    x = 118,619.86

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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.