Home / 196,765.20-295,289.64-78,368.04

Finding the Fourth Proportional to 196,765.20, 295,289.64 and 78,368.04

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Solution

The fourth proportional to 196,765.20, 295,289.64 and 78,368.04 is: 117,608.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,765.20 : 295,289.64 = 78,368.04 : x
  2. Step 2: Convert to fraction form
    196,765.20/295,289.64 = 78,368.04/x
  3. Step 3: Cross multiply
    196,765.20x = 295,289.64 × 78,368.04
  4. Step 4: Simplify right side
    196,765.20x = 23,141,270,319.11
  5. Step 5: Solve for x
    x = 23,141,270,319.11/196,765.20
  6. Step 6: Final answer
    x = 117,608.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.