Home / 209,146.91-288,614.88-113,651.55

Finding the Fourth Proportional to 209,146.91, 288,614.88 and 113,651.55

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Solution

The fourth proportional to 209,146.91, 288,614.88 and 113,651.55 is: 156,834.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,146.91 : 288,614.88 = 113,651.55 : x
  2. Step 2: Convert to fraction form
    209,146.91/288,614.88 = 113,651.55/x
  3. Step 3: Cross multiply
    209,146.91x = 288,614.88 × 113,651.55
  4. Step 4: Simplify right side
    209,146.91x = 32,801,528,465.06
  5. Step 5: Solve for x
    x = 32,801,528,465.06/209,146.91
  6. Step 6: Final answer
    x = 156,834.87

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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.