Home / 196,913.80-295,261.35-78,451.30

Finding the Fourth Proportional to 196,913.80, 295,261.35 and 78,451.30

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Solution

The fourth proportional to 196,913.80, 295,261.35 and 78,451.30 is: 117,633.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,913.80 : 295,261.35 = 78,451.30 : x
  2. Step 2: Convert to fraction form
    196,913.80/295,261.35 = 78,451.30/x
  3. Step 3: Cross multiply
    196,913.80x = 295,261.35 × 78,451.30
  4. Step 4: Simplify right side
    196,913.80x = 23,163,636,747.26
  5. Step 5: Solve for x
    x = 23,163,636,747.26/196,913.80
  6. Step 6: Final answer
    x = 117,633.38

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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.