Home / 215,778.90-323,707.24-66,016.38

Finding the Fourth Proportional to 215,778.90, 323,707.24 and 66,016.38

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Solution

The fourth proportional to 215,778.90, 323,707.24 and 66,016.38 is: 99,036.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,778.90 : 323,707.24 = 66,016.38 : x
  2. Step 2: Convert to fraction form
    215,778.90/323,707.24 = 66,016.38/x
  3. Step 3: Cross multiply
    215,778.90x = 323,707.24 × 66,016.38
  4. Step 4: Simplify right side
    215,778.90x = 21,369,980,164.59
  5. Step 5: Solve for x
    x = 21,369,980,164.59/215,778.90
  6. Step 6: Final answer
    x = 99,036.47

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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.