Home / 149,360.03-206,114.94-81,379.83

Finding the Fourth Proportional to 149,360.03, 206,114.94 and 81,379.83

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Solution

The fourth proportional to 149,360.03, 206,114.94 and 81,379.83 is: 112,303.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,360.03 : 206,114.94 = 81,379.83 : x
  2. Step 2: Convert to fraction form
    149,360.03/206,114.94 = 81,379.83/x
  3. Step 3: Cross multiply
    149,360.03x = 206,114.94 × 81,379.83
  4. Step 4: Simplify right side
    149,360.03x = 16,773,598,777.66
  5. Step 5: Solve for x
    x = 16,773,598,777.66/149,360.03
  6. Step 6: Final answer
    x = 112,303.13

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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.