Home / 211,263.76-291,551.09-115,769.62

Finding the Fourth Proportional to 211,263.76, 291,551.09 and 115,769.62

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Solution

The fourth proportional to 211,263.76, 291,551.09 and 115,769.62 is: 159,765.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,263.76 : 291,551.09 = 115,769.62 : x
  2. Step 2: Convert to fraction form
    211,263.76/291,551.09 = 115,769.62/x
  3. Step 3: Cross multiply
    211,263.76x = 291,551.09 × 115,769.62
  4. Step 4: Simplify right side
    211,263.76x = 33,752,758,899.89
  5. Step 5: Solve for x
    x = 33,752,758,899.89/211,263.76
  6. Step 6: Final answer
    x = 159,765.97

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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.