Home / 209,084.79-288,536.25-113,590.65

Finding the Fourth Proportional to 209,084.79, 288,536.25 and 113,590.65

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Solution

The fourth proportional to 209,084.79, 288,536.25 and 113,590.65 is: 156,754.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,084.79 : 288,536.25 = 113,590.65 : x
  2. Step 2: Convert to fraction form
    209,084.79/288,536.25 = 113,590.65/x
  3. Step 3: Cross multiply
    209,084.79x = 288,536.25 × 113,590.65
  4. Step 4: Simplify right side
    209,084.79x = 32,775,020,186.06
  5. Step 5: Solve for x
    x = 32,775,020,186.06/209,084.79
  6. Step 6: Final answer
    x = 156,754.68

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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.