Home / 109,990.66-164,989.05-38,903.24

Finding the Fourth Proportional to 109,990.66, 164,989.05 and 38,903.24

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Solution

The fourth proportional to 109,990.66, 164,989.05 and 38,903.24 is: 58,355.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,990.66 : 164,989.05 = 38,903.24 : x
  2. Step 2: Convert to fraction form
    109,990.66/164,989.05 = 38,903.24/x
  3. Step 3: Cross multiply
    109,990.66x = 164,989.05 × 38,903.24
  4. Step 4: Simplify right side
    109,990.66x = 6,418,608,166.87
  5. Step 5: Solve for x
    x = 6,418,608,166.87/109,990.66
  6. Step 6: Final answer
    x = 58,355.94

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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.