Home / 196,777.60-295,385.10-121,982.20

Finding the Fourth Proportional to 196,777.60, 295,385.10 and 121,982.20

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Solution

The fourth proportional to 196,777.60, 295,385.10 and 121,982.20 is: 183,108.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,777.60 : 295,385.10 = 121,982.20 : x
  2. Step 2: Convert to fraction form
    196,777.60/295,385.10 = 121,982.20/x
  3. Step 3: Cross multiply
    196,777.60x = 295,385.10 × 121,982.20
  4. Step 4: Simplify right side
    196,777.60x = 36,031,724,345.22
  5. Step 5: Solve for x
    x = 36,031,724,345.22/196,777.60
  6. Step 6: Final answer
    x = 183,108.87

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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.