Home / 109,391.16-164,114.41-30,505.40

Finding the Fourth Proportional to 109,391.16, 164,114.41 and 30,505.40

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Solution

The fourth proportional to 109,391.16, 164,114.41 and 30,505.40 is: 45,765.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,391.16 : 164,114.41 = 30,505.40 : x
  2. Step 2: Convert to fraction form
    109,391.16/164,114.41 = 30,505.40/x
  3. Step 3: Cross multiply
    109,391.16x = 164,114.41 × 30,505.40
  4. Step 4: Simplify right side
    109,391.16x = 5,006,374,825.98
  5. Step 5: Solve for x
    x = 5,006,374,825.98/109,391.16
  6. Step 6: Final answer
    x = 45,765.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.