Home / 209,196.36-288,732.72-132,806.40

Finding the Fourth Proportional to 209,196.36, 288,732.72 and 132,806.40

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Solution

The fourth proportional to 209,196.36, 288,732.72 and 132,806.40 is: 183,299.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,196.36 : 288,732.72 = 132,806.40 : x
  2. Step 2: Convert to fraction form
    209,196.36/288,732.72 = 132,806.40/x
  3. Step 3: Cross multiply
    209,196.36x = 288,732.72 × 132,806.40
  4. Step 4: Simplify right side
    209,196.36x = 38,345,553,105.41
  5. Step 5: Solve for x
    x = 38,345,553,105.41/209,196.36
  6. Step 6: Final answer
    x = 183,299.33

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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.