Home / 209,161.64-288,631.35-113,667.71

Finding the Fourth Proportional to 209,161.64, 288,631.35 and 113,667.71

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Solution

The fourth proportional to 209,161.64, 288,631.35 and 113,667.71 is: 156,855.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,161.64 : 288,631.35 = 113,667.71 : x
  2. Step 2: Convert to fraction form
    209,161.64/288,631.35 = 113,667.71/x
  3. Step 3: Cross multiply
    209,161.64x = 288,631.35 × 113,667.71
  4. Step 4: Simplify right side
    209,161.64x = 32,808,063,145.55
  5. Step 5: Solve for x
    x = 32,808,063,145.55/209,161.64
  6. Step 6: Final answer
    x = 156,855.07

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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.