Home / 209,351.71-288,897.06-113,858.38

Finding the Fourth Proportional to 209,351.71, 288,897.06 and 113,858.38

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Solution

The fourth proportional to 209,351.71, 288,897.06 and 113,858.38 is: 157,120.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,351.71 : 288,897.06 = 113,858.38 : x
  2. Step 2: Convert to fraction form
    209,351.71/288,897.06 = 113,858.38/x
  3. Step 3: Cross multiply
    209,351.71x = 288,897.06 × 113,858.38
  4. Step 4: Simplify right side
    209,351.71x = 32,893,351,238.36
  5. Step 5: Solve for x
    x = 32,893,351,238.36/209,351.71
  6. Step 6: Final answer
    x = 157,120.05

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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.