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Finding the Fourth Proportional to 146,855, 202,660.44 and 79,787

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Solution

The fourth proportional to 146,855, 202,660.44 and 79,787 is: 110,106.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,855 : 202,660.44 = 79,787 : x
  2. Step 2: Convert to fraction form
    146,855/202,660.44 = 79,787/x
  3. Step 3: Cross multiply
    146,855x = 202,660.44 × 79,787
  4. Step 4: Simplify right side
    146,855x = 16,169,668,526.28
  5. Step 5: Solve for x
    x = 16,169,668,526.28/146,855
  6. Step 6: Final answer
    x = 110,106.35

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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.