Home / 209,134.08-288,606.84-113,640.76

Finding the Fourth Proportional to 209,134.08, 288,606.84 and 113,640.76

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Solution

The fourth proportional to 209,134.08, 288,606.84 and 113,640.76 is: 156,825.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,134.08 : 288,606.84 = 113,640.76 : x
  2. Step 2: Convert to fraction form
    209,134.08/288,606.84 = 113,640.76/x
  3. Step 3: Cross multiply
    209,134.08x = 288,606.84 × 113,640.76
  4. Step 4: Simplify right side
    209,134.08x = 32,797,500,638.80
  5. Step 5: Solve for x
    x = 32,797,500,638.80/209,134.08
  6. Step 6: Final answer
    x = 156,825.23

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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.