Home / 209,540.40-289,186.84-123,526.71

Finding the Fourth Proportional to 209,540.40, 289,186.84 and 123,526.71

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Solution

The fourth proportional to 209,540.40, 289,186.84 and 123,526.71 is: 170,479.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,540.40 : 289,186.84 = 123,526.71 : x
  2. Step 2: Convert to fraction form
    209,540.40/289,186.84 = 123,526.71/x
  3. Step 3: Cross multiply
    209,540.40x = 289,186.84 × 123,526.71
  4. Step 4: Simplify right side
    209,540.40x = 35,722,300,237.68
  5. Step 5: Solve for x
    x = 35,722,300,237.68/209,540.40
  6. Step 6: Final answer
    x = 170,479.30

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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.