Home / 194,181.42-291,385.35-81,854.76

Finding the Fourth Proportional to 194,181.42, 291,385.35 and 81,854.76

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Solution

The fourth proportional to 194,181.42, 291,385.35 and 81,854.76 is: 122,829.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,181.42 : 291,385.35 = 81,854.76 : x
  2. Step 2: Convert to fraction form
    194,181.42/291,385.35 = 81,854.76/x
  3. Step 3: Cross multiply
    194,181.42x = 291,385.35 × 81,854.76
  4. Step 4: Simplify right side
    194,181.42x = 23,851,277,891.77
  5. Step 5: Solve for x
    x = 23,851,277,891.77/194,181.42
  6. Step 6: Final answer
    x = 122,829.87

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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.