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Finding the Fourth Proportional to 146,683, 202,422.72 and 79,615

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Solution

The fourth proportional to 146,683, 202,422.72 and 79,615 is: 109,868.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,683 : 202,422.72 = 79,615 : x
  2. Step 2: Convert to fraction form
    146,683/202,422.72 = 79,615/x
  3. Step 3: Cross multiply
    146,683x = 202,422.72 × 79,615
  4. Step 4: Simplify right side
    146,683x = 16,115,884,852.80
  5. Step 5: Solve for x
    x = 16,115,884,852.80/146,683
  6. Step 6: Final answer
    x = 109,868.80

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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.