Home / 194,195.92-291,407.08-81,869.28

Finding the Fourth Proportional to 194,195.92, 291,407.08 and 81,869.28

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Solution

The fourth proportional to 194,195.92, 291,407.08 and 81,869.28 is: 122,851.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,195.92 : 291,407.08 = 81,869.28 : x
  2. Step 2: Convert to fraction form
    194,195.92/291,407.08 = 81,869.28/x
  3. Step 3: Cross multiply
    194,195.92x = 291,407.08 × 81,869.28
  4. Step 4: Simplify right side
    194,195.92x = 23,857,287,826.50
  5. Step 5: Solve for x
    x = 23,857,287,826.50/194,195.92
  6. Step 6: Final answer
    x = 122,851.64

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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.