Home / 146,511.75-202,186.31-79,443.75

Finding the Fourth Proportional to 146,511.75, 202,186.31 and 79,443.75

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Solution

The fourth proportional to 146,511.75, 202,186.31 and 79,443.75 is: 109,632.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,511.75 : 202,186.31 = 79,443.75 : x
  2. Step 2: Convert to fraction form
    146,511.75/202,186.31 = 79,443.75/x
  3. Step 3: Cross multiply
    146,511.75x = 202,186.31 × 79,443.75
  4. Step 4: Simplify right side
    146,511.75x = 16,062,438,665.06
  5. Step 5: Solve for x
    x = 16,062,438,665.06/146,511.75
  6. Step 6: Final answer
    x = 109,632.43

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1.5x scale

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.