Home / 209,384.52-288,947.70-113,889.03

Finding the Fourth Proportional to 209,384.52, 288,947.70 and 113,889.03

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Solution

The fourth proportional to 209,384.52, 288,947.70 and 113,889.03 is: 157,165.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,384.52 : 288,947.70 = 113,889.03 : x
  2. Step 2: Convert to fraction form
    209,384.52/288,947.70 = 113,889.03/x
  3. Step 3: Cross multiply
    209,384.52x = 288,947.70 × 113,889.03
  4. Step 4: Simplify right side
    209,384.52x = 32,907,973,273.73
  5. Step 5: Solve for x
    x = 32,907,973,273.73/209,384.52
  6. Step 6: Final answer
    x = 157,165.26

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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.