Home / 107,658.84-161,379.70-67,706.36

Finding the Fourth Proportional to 107,658.84, 161,379.70 and 67,706.36

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Solution

The fourth proportional to 107,658.84, 161,379.70 and 67,706.36 is: 101,491.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,658.84 : 161,379.70 = 67,706.36 : x
  2. Step 2: Convert to fraction form
    107,658.84/161,379.70 = 67,706.36/x
  3. Step 3: Cross multiply
    107,658.84x = 161,379.70 × 67,706.36
  4. Step 4: Simplify right side
    107,658.84x = 10,926,432,064.89
  5. Step 5: Solve for x
    x = 10,926,432,064.89/107,658.84
  6. Step 6: Final answer
    x = 101,491.27

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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.