Home / 209,514.32-289,117.16-117,626.84

Finding the Fourth Proportional to 209,514.32, 289,117.16 and 117,626.84

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Solution

The fourth proportional to 209,514.32, 289,117.16 and 117,626.84 is: 162,317.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,514.32 : 289,117.16 = 117,626.84 : x
  2. Step 2: Convert to fraction form
    209,514.32/289,117.16 = 117,626.84/x
  3. Step 3: Cross multiply
    209,514.32x = 289,117.16 × 117,626.84
  4. Step 4: Simplify right side
    209,514.32x = 34,007,937,920.57
  5. Step 5: Solve for x
    x = 34,007,937,920.57/209,514.32
  6. Step 6: Final answer
    x = 162,317.96

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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.