Home / 115,093.41-158,872.10-85,119.98

Finding the Fourth Proportional to 115,093.41, 158,872.10 and 85,119.98

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Solution

The fourth proportional to 115,093.41, 158,872.10 and 85,119.98 is: 117,497.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,093.41 : 158,872.10 = 85,119.98 : x
  2. Step 2: Convert to fraction form
    115,093.41/158,872.10 = 85,119.98/x
  3. Step 3: Cross multiply
    115,093.41x = 158,872.10 × 85,119.98
  4. Step 4: Simplify right side
    115,093.41x = 13,523,188,754.60
  5. Step 5: Solve for x
    x = 13,523,188,754.60/115,093.41
  6. Step 6: Final answer
    x = 117,497.51

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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.