Home / 209,049.71-288,529.03-136,326.34

Finding the Fourth Proportional to 209,049.71, 288,529.03 and 136,326.34

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Solution

The fourth proportional to 209,049.71, 288,529.03 and 136,326.34 is: 188,156.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,049.71 : 288,529.03 = 136,326.34 : x
  2. Step 2: Convert to fraction form
    209,049.71/288,529.03 = 136,326.34/x
  3. Step 3: Cross multiply
    209,049.71x = 288,529.03 × 136,326.34
  4. Step 4: Simplify right side
    209,049.71x = 39,334,106,643.65
  5. Step 5: Solve for x
    x = 39,334,106,643.65/209,049.71
  6. Step 6: Final answer
    x = 188,156.71

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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.