Home / 215,599.08-323,398.64-82,520.16

Finding the Fourth Proportional to 215,599.08, 323,398.64 and 82,520.16

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Solution

The fourth proportional to 215,599.08, 323,398.64 and 82,520.16 is: 123,780.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,599.08 : 323,398.64 = 82,520.16 : x
  2. Step 2: Convert to fraction form
    215,599.08/323,398.64 = 82,520.16/x
  3. Step 3: Cross multiply
    215,599.08x = 323,398.64 × 82,520.16
  4. Step 4: Simplify right side
    215,599.08x = 26,686,907,516.58
  5. Step 5: Solve for x
    x = 26,686,907,516.58/215,599.08
  6. Step 6: Final answer
    x = 123,780.25

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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.