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Finding the Fourth Proportional to 146,700, 202,450.32 and 79,636.32

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Solution

The fourth proportional to 146,700, 202,450.32 and 79,636.32 is: 109,900.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,700 : 202,450.32 = 79,636.32 : x
  2. Step 2: Convert to fraction form
    146,700/202,450.32 = 79,636.32/x
  3. Step 3: Cross multiply
    146,700x = 202,450.32 × 79,636.32
  4. Step 4: Simplify right side
    146,700x = 16,122,398,467.62
  5. Step 5: Solve for x
    x = 16,122,398,467.62/146,700
  6. Step 6: Final answer
    x = 109,900.47

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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.