Home / 209,339.73-288,782.32-136,785.04

Finding the Fourth Proportional to 209,339.73, 288,782.32 and 136,785.04

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Solution

The fourth proportional to 209,339.73, 288,782.32 and 136,785.04 is: 188,693.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,339.73 : 288,782.32 = 136,785.04 : x
  2. Step 2: Convert to fraction form
    209,339.73/288,782.32 = 136,785.04/x
  3. Step 3: Cross multiply
    209,339.73x = 288,782.32 × 136,785.04
  4. Step 4: Simplify right side
    209,339.73x = 39,501,101,192.49
  5. Step 5: Solve for x
    x = 39,501,101,192.49/209,339.73
  6. Step 6: Final answer
    x = 188,693.76

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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.