Home / 209,789.66-289,619.45-163,750.58

Finding the Fourth Proportional to 209,789.66, 289,619.45 and 163,750.58

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Solution

The fourth proportional to 209,789.66, 289,619.45 and 163,750.58 is: 226,061.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,789.66 : 289,619.45 = 163,750.58 : x
  2. Step 2: Convert to fraction form
    209,789.66/289,619.45 = 163,750.58/x
  3. Step 3: Cross multiply
    209,789.66x = 289,619.45 × 163,750.58
  4. Step 4: Simplify right side
    209,789.66x = 47,425,350,649.93
  5. Step 5: Solve for x
    x = 47,425,350,649.93/209,789.66
  6. Step 6: Final answer
    x = 226,061.44

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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.