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Finding the Fourth Proportional to 143,662.54, 215,516.58 and 43,799.86

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Solution

The fourth proportional to 143,662.54, 215,516.58 and 43,799.86 is: 65,706.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,662.54 : 215,516.58 = 43,799.86 : x
  2. Step 2: Convert to fraction form
    143,662.54/215,516.58 = 43,799.86/x
  3. Step 3: Cross multiply
    143,662.54x = 215,516.58 × 43,799.86
  4. Step 4: Simplify right side
    143,662.54x = 9,439,596,031.68
  5. Step 5: Solve for x
    x = 9,439,596,031.68/143,662.54
  6. Step 6: Final answer
    x = 65,706.73

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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.