Home / 149,079.23-205,729.18-81,096.04

Finding the Fourth Proportional to 149,079.23, 205,729.18 and 81,096.04

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Solution

The fourth proportional to 149,079.23, 205,729.18 and 81,096.04 is: 111,912.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,079.23 : 205,729.18 = 81,096.04 : x
  2. Step 2: Convert to fraction form
    149,079.23/205,729.18 = 81,096.04/x
  3. Step 3: Cross multiply
    149,079.23x = 205,729.18 × 81,096.04
  4. Step 4: Simplify right side
    149,079.23x = 16,683,821,093.38
  5. Step 5: Solve for x
    x = 16,683,821,093.38/149,079.23
  6. Step 6: Final answer
    x = 111,912.45

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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.