Home / 206,916.44-285,535.49-120,883.40

Finding the Fourth Proportional to 206,916.44, 285,535.49 and 120,883.40

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Solution

The fourth proportional to 206,916.44, 285,535.49 and 120,883.40 is: 166,813.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,916.44 : 285,535.49 = 120,883.40 : x
  2. Step 2: Convert to fraction form
    206,916.44/285,535.49 = 120,883.40/x
  3. Step 3: Cross multiply
    206,916.44x = 285,535.49 × 120,883.40
  4. Step 4: Simplify right side
    206,916.44x = 34,516,500,851.87
  5. Step 5: Solve for x
    x = 34,516,500,851.87/206,916.44
  6. Step 6: Final answer
    x = 166,813.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.