Home / 147,704.12-203,830.64-80,636.12

Finding the Fourth Proportional to 147,704.12, 203,830.64 and 80,636.12

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Solution

The fourth proportional to 147,704.12, 203,830.64 and 80,636.12 is: 111,277.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,704.12 : 203,830.64 = 80,636.12 : x
  2. Step 2: Convert to fraction form
    147,704.12/203,830.64 = 80,636.12/x
  3. Step 3: Cross multiply
    147,704.12x = 203,830.64 × 80,636.12
  4. Step 4: Simplify right side
    147,704.12x = 16,436,111,946.72
  5. Step 5: Solve for x
    x = 16,436,111,946.72/147,704.12
  6. Step 6: Final answer
    x = 111,277.27

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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.