Home / 209,147.09-288,624.74-113,653.76

Finding the Fourth Proportional to 209,147.09, 288,624.74 and 113,653.76

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Solution

The fourth proportional to 209,147.09, 288,624.74 and 113,653.76 is: 156,843.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,147.09 : 288,624.74 = 113,653.76 : x
  2. Step 2: Convert to fraction form
    209,147.09/288,624.74 = 113,653.76/x
  3. Step 3: Cross multiply
    209,147.09x = 288,624.74 × 113,653.76
  4. Step 4: Simplify right side
    209,147.09x = 32,803,284,918.63
  5. Step 5: Solve for x
    x = 32,803,284,918.63/209,147.09
  6. Step 6: Final answer
    x = 156,843.14

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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.