Home / 215,439.70-323,210.82-108,561.04

Finding the Fourth Proportional to 215,439.70, 323,210.82 and 108,561.04

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Solution

The fourth proportional to 215,439.70, 323,210.82 and 108,561.04 is: 162,867.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,439.70 : 323,210.82 = 108,561.04 : x
  2. Step 2: Convert to fraction form
    215,439.70/323,210.82 = 108,561.04/x
  3. Step 3: Cross multiply
    215,439.70x = 323,210.82 × 108,561.04
  4. Step 4: Simplify right side
    215,439.70x = 35,088,102,758.45
  5. Step 5: Solve for x
    x = 35,088,102,758.45/215,439.70
  6. Step 6: Final answer
    x = 162,867.40

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1.5x scale

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.