Home / 209,637.88-289,255.26-124,738.36

Finding the Fourth Proportional to 209,637.88, 289,255.26 and 124,738.36

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Solution

The fourth proportional to 209,637.88, 289,255.26 and 124,738.36 is: 172,112.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,637.88 : 289,255.26 = 124,738.36 : x
  2. Step 2: Convert to fraction form
    209,637.88/289,255.26 = 124,738.36/x
  3. Step 3: Cross multiply
    209,637.88x = 289,255.26 × 124,738.36
  4. Step 4: Simplify right side
    209,637.88x = 36,081,226,753.77
  5. Step 5: Solve for x
    x = 36,081,226,753.77/209,637.88
  6. Step 6: Final answer
    x = 172,112.15

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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.