Home / 137,181.26-206,800.09-128,036.87

Finding the Fourth Proportional to 137,181.26, 206,800.09 and 128,036.87

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Solution

The fourth proportional to 137,181.26, 206,800.09 and 128,036.87 is: 193,014.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,181.26 : 206,800.09 = 128,036.87 : x
  2. Step 2: Convert to fraction form
    137,181.26/206,800.09 = 128,036.87/x
  3. Step 3: Cross multiply
    137,181.26x = 206,800.09 × 128,036.87
  4. Step 4: Simplify right side
    137,181.26x = 26,478,036,239.32
  5. Step 5: Solve for x
    x = 26,478,036,239.32/137,181.26
  6. Step 6: Final answer
    x = 193,014.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.