Home / 109,507.29-164,261.21-30,621.39

Finding the Fourth Proportional to 109,507.29, 164,261.21 and 30,621.39

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Solution

The fourth proportional to 109,507.29, 164,261.21 and 30,621.39 is: 45,932.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,507.29 : 164,261.21 = 30,621.39 : x
  2. Step 2: Convert to fraction form
    109,507.29/164,261.21 = 30,621.39/x
  3. Step 3: Cross multiply
    109,507.29x = 164,261.21 × 30,621.39
  4. Step 4: Simplify right side
    109,507.29x = 5,029,906,420.17
  5. Step 5: Solve for x
    x = 5,029,906,420.17/109,507.29
  6. Step 6: Final answer
    x = 45,932.16

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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.