Home / 137,187.23-206,809.07-128,042.83

Finding the Fourth Proportional to 137,187.23, 206,809.07 and 128,042.83

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Solution

The fourth proportional to 137,187.23, 206,809.07 and 128,042.83 is: 193,023.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,187.23 : 206,809.07 = 128,042.83 : x
  2. Step 2: Convert to fraction form
    137,187.23/206,809.07 = 128,042.83/x
  3. Step 3: Cross multiply
    137,187.23x = 206,809.07 × 128,042.83
  4. Step 4: Simplify right side
    137,187.23x = 26,480,418,395.55
  5. Step 5: Solve for x
    x = 26,480,418,395.55/137,187.23
  6. Step 6: Final answer
    x = 193,023.94

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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.