Home / 109,660.20-164,478.15-89,904.30

Finding the Fourth Proportional to 109,660.20, 164,478.15 and 89,904.30

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Solution

The fourth proportional to 109,660.20, 164,478.15 and 89,904.30 is: 134,846.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,660.20 : 164,478.15 = 89,904.30 : x
  2. Step 2: Convert to fraction form
    109,660.20/164,478.15 = 89,904.30/x
  3. Step 3: Cross multiply
    109,660.20x = 164,478.15 × 89,904.30
  4. Step 4: Simplify right side
    109,660.20x = 14,787,292,941.05
  5. Step 5: Solve for x
    x = 14,787,292,941.05/109,660.20
  6. Step 6: Final answer
    x = 134,846.49

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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.