Home / 215,059.50-322,387.74-72,805.27

Finding the Fourth Proportional to 215,059.50, 322,387.74 and 72,805.27

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Solution

The fourth proportional to 215,059.50, 322,387.74 and 72,805.27 is: 109,139.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,059.50 : 322,387.74 = 72,805.27 : x
  2. Step 2: Convert to fraction form
    215,059.50/322,387.74 = 72,805.27/x
  3. Step 3: Cross multiply
    215,059.50x = 322,387.74 × 72,805.27
  4. Step 4: Simplify right side
    215,059.50x = 23,471,526,455.39
  5. Step 5: Solve for x
    x = 23,471,526,455.39/215,059.50
  6. Step 6: Final answer
    x = 109,139.69

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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.