Home / 196,872.40-295,114.20-78,385.60

Finding the Fourth Proportional to 196,872.40, 295,114.20 and 78,385.60

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Solution

The fourth proportional to 196,872.40, 295,114.20 and 78,385.60 is: 117,501.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,872.40 : 295,114.20 = 78,385.60 : x
  2. Step 2: Convert to fraction form
    196,872.40/295,114.20 = 78,385.60/x
  3. Step 3: Cross multiply
    196,872.40x = 295,114.20 × 78,385.60
  4. Step 4: Simplify right side
    196,872.40x = 23,132,703,635.52
  5. Step 5: Solve for x
    x = 23,132,703,635.52/196,872.40
  6. Step 6: Final answer
    x = 117,501.00

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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.