Home / 147,929.63-204,142.88-80,861.63

Finding the Fourth Proportional to 147,929.63, 204,142.88 and 80,861.63

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Solution

The fourth proportional to 147,929.63, 204,142.88 and 80,861.63 is: 111,589.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,929.63 : 204,142.88 = 80,861.63 : x
  2. Step 2: Convert to fraction form
    147,929.63/204,142.88 = 80,861.63/x
  3. Step 3: Cross multiply
    147,929.63x = 204,142.88 × 80,861.63
  4. Step 4: Simplify right side
    147,929.63x = 16,507,325,211.13
  5. Step 5: Solve for x
    x = 16,507,325,211.13/147,929.63
  6. Step 6: Final answer
    x = 111,589.04

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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.