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Finding the Fourth Proportional to 144,995.54, 217,484.62 and 45,141.66

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Solution

The fourth proportional to 144,995.54, 217,484.62 and 45,141.66 is: 67,709.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,995.54 : 217,484.62 = 45,141.66 : x
  2. Step 2: Convert to fraction form
    144,995.54/217,484.62 = 45,141.66/x
  3. Step 3: Cross multiply
    144,995.54x = 217,484.62 × 45,141.66
  4. Step 4: Simplify right side
    144,995.54x = 9,817,616,658.42
  5. Step 5: Solve for x
    x = 9,817,616,658.42/144,995.54
  6. Step 6: Final answer
    x = 67,709.79

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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.