Home / 215,896.47-323,854.42-66,125.85

Finding the Fourth Proportional to 215,896.47, 323,854.42 and 66,125.85

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Solution

The fourth proportional to 215,896.47, 323,854.42 and 66,125.85 is: 99,191.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,896.47 : 323,854.42 = 66,125.85 : x
  2. Step 2: Convert to fraction form
    215,896.47/323,854.42 = 66,125.85/x
  3. Step 3: Cross multiply
    215,896.47x = 323,854.42 × 66,125.85
  4. Step 4: Simplify right side
    215,896.47x = 21,415,148,798.76
  5. Step 5: Solve for x
    x = 21,415,148,798.76/215,896.47
  6. Step 6: Final answer
    x = 99,191.75

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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.