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Finding the Fourth Proportional to 146,673.78, 202,409.82 and 79,605.78

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Solution

The fourth proportional to 146,673.78, 202,409.82 and 79,605.78 is: 109,855.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,673.78 : 202,409.82 = 79,605.78 : x
  2. Step 2: Convert to fraction form
    146,673.78/202,409.82 = 79,605.78/x
  3. Step 3: Cross multiply
    146,673.78x = 202,409.82 × 79,605.78
  4. Step 4: Simplify right side
    146,673.78x = 16,112,991,600.76
  5. Step 5: Solve for x
    x = 16,112,991,600.76/146,673.78
  6. Step 6: Final answer
    x = 109,855.98

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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.