Home / 109,698.20-164,529.70-39,541.40

Finding the Fourth Proportional to 109,698.20, 164,529.70 and 39,541.40

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Solution

The fourth proportional to 109,698.20, 164,529.70 and 39,541.40 is: 59,305.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,698.20 : 164,529.70 = 39,541.40 : x
  2. Step 2: Convert to fraction form
    109,698.20/164,529.70 = 39,541.40/x
  3. Step 3: Cross multiply
    109,698.20x = 164,529.70 × 39,541.40
  4. Step 4: Simplify right side
    109,698.20x = 6,505,734,679.58
  5. Step 5: Solve for x
    x = 6,505,734,679.58/109,698.20
  6. Step 6: Final answer
    x = 59,305.76

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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.