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Finding the Fourth Proportional to 107,929, 148,942.02 and 63,217

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Solution

The fourth proportional to 107,929, 148,942.02 and 63,217 is: 87,239.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,929 : 148,942.02 = 63,217 : x
  2. Step 2: Convert to fraction form
    107,929/148,942.02 = 63,217/x
  3. Step 3: Cross multiply
    107,929x = 148,942.02 × 63,217
  4. Step 4: Simplify right side
    107,929x = 9,415,667,678.34
  5. Step 5: Solve for x
    x = 9,415,667,678.34/107,929
  6. Step 6: Final answer
    x = 87,239.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.