Home / 139,907.22-193,066.33-76,243.65

Finding the Fourth Proportional to 139,907.22, 193,066.33 and 76,243.65

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Solution

The fourth proportional to 139,907.22, 193,066.33 and 76,243.65 is: 105,213.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,907.22 : 193,066.33 = 76,243.65 : x
  2. Step 2: Convert to fraction form
    139,907.22/193,066.33 = 76,243.65/x
  3. Step 3: Cross multiply
    139,907.22x = 193,066.33 × 76,243.65
  4. Step 4: Simplify right side
    139,907.22x = 14,720,081,310.09
  5. Step 5: Solve for x
    x = 14,720,081,310.09/139,907.22
  6. Step 6: Final answer
    x = 105,213.16

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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.