Home / 210,905.85-291,048.79-114,109.38

Finding the Fourth Proportional to 210,905.85, 291,048.79 and 114,109.38

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Solution

The fourth proportional to 210,905.85, 291,048.79 and 114,109.38 is: 157,470.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,905.85 : 291,048.79 = 114,109.38 : x
  2. Step 2: Convert to fraction form
    210,905.85/291,048.79 = 114,109.38/x
  3. Step 3: Cross multiply
    210,905.85x = 291,048.79 × 114,109.38
  4. Step 4: Simplify right side
    210,905.85x = 33,211,396,976.65
  5. Step 5: Solve for x
    x = 33,211,396,976.65/210,905.85
  6. Step 6: Final answer
    x = 157,470.25

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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.