Home / 153,170.56-211,381.20-85,192.44

Finding the Fourth Proportional to 153,170.56, 211,381.20 and 85,192.44

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Solution

The fourth proportional to 153,170.56, 211,381.20 and 85,192.44 is: 117,568.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,170.56 : 211,381.20 = 85,192.44 : x
  2. Step 2: Convert to fraction form
    153,170.56/211,381.20 = 85,192.44/x
  3. Step 3: Cross multiply
    153,170.56x = 211,381.20 × 85,192.44
  4. Step 4: Simplify right side
    153,170.56x = 18,008,079,772.17
  5. Step 5: Solve for x
    x = 18,008,079,772.17/153,170.56
  6. Step 6: Final answer
    x = 117,568.81

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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.