Home / 211,022.14-291,215.64-115,528.54

Finding the Fourth Proportional to 211,022.14, 291,215.64 and 115,528.54

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Solution

The fourth proportional to 211,022.14, 291,215.64 and 115,528.54 is: 159,432.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,022.14 : 291,215.64 = 115,528.54 : x
  2. Step 2: Convert to fraction form
    211,022.14/291,215.64 = 115,528.54/x
  3. Step 3: Cross multiply
    211,022.14x = 291,215.64 × 115,528.54
  4. Step 4: Simplify right side
    211,022.14x = 33,643,717,714.37
  5. Step 5: Solve for x
    x = 33,643,717,714.37/211,022.14
  6. Step 6: Final answer
    x = 159,432.17

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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.