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Finding the Fourth Proportional to 146,690, 202,432.44 and 79,622

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Solution

The fourth proportional to 146,690, 202,432.44 and 79,622 is: 109,878.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,690 : 202,432.44 = 79,622 : x
  2. Step 2: Convert to fraction form
    146,690/202,432.44 = 79,622/x
  3. Step 3: Cross multiply
    146,690x = 202,432.44 × 79,622
  4. Step 4: Simplify right side
    146,690x = 16,118,075,737.68
  5. Step 5: Solve for x
    x = 16,118,075,737.68/146,690
  6. Step 6: Final answer
    x = 109,878.49

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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.