Home / 215,823.16-323,730.90-82,667.32

Finding the Fourth Proportional to 215,823.16, 323,730.90 and 82,667.32

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Solution

The fourth proportional to 215,823.16, 323,730.90 and 82,667.32 is: 123,999.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,823.16 : 323,730.90 = 82,667.32 : x
  2. Step 2: Convert to fraction form
    215,823.16/323,730.90 = 82,667.32/x
  3. Step 3: Cross multiply
    215,823.16x = 323,730.90 × 82,667.32
  4. Step 4: Simplify right side
    215,823.16x = 26,761,965,904.19
  5. Step 5: Solve for x
    x = 26,761,965,904.19/215,823.16
  6. Step 6: Final answer
    x = 123,999.51

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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.