Home / 170,890.90-256,113.38-123,665.06

Finding the Fourth Proportional to 170,890.90, 256,113.38 and 123,665.06

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Solution

The fourth proportional to 170,890.90, 256,113.38 and 123,665.06 is: 185,336.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,890.90 : 256,113.38 = 123,665.06 : x
  2. Step 2: Convert to fraction form
    170,890.90/256,113.38 = 123,665.06/x
  3. Step 3: Cross multiply
    170,890.90x = 256,113.38 × 123,665.06
  4. Step 4: Simplify right side
    170,890.90x = 31,672,277,453.95
  5. Step 5: Solve for x
    x = 31,672,277,453.95/170,890.90
  6. Step 6: Final answer
    x = 185,336.25

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1.5x scale

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.