Home / 209,667.88-289,296.54-124,768.36

Finding the Fourth Proportional to 209,667.88, 289,296.54 and 124,768.36

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Solution

The fourth proportional to 209,667.88, 289,296.54 and 124,768.36 is: 172,153.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,667.88 : 289,296.54 = 124,768.36 : x
  2. Step 2: Convert to fraction form
    209,667.88/289,296.54 = 124,768.36/x
  3. Step 3: Cross multiply
    209,667.88x = 289,296.54 × 124,768.36
  4. Step 4: Simplify right side
    209,667.88x = 36,095,054,849.47
  5. Step 5: Solve for x
    x = 36,095,054,849.47/209,667.88
  6. Step 6: Final answer
    x = 172,153.48

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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.