Home / 211,013.06-291,204.58-115,528.64

Finding the Fourth Proportional to 211,013.06, 291,204.58 and 115,528.64

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Solution

The fourth proportional to 211,013.06, 291,204.58 and 115,528.64 is: 159,433.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,013.06 : 291,204.58 = 115,528.64 : x
  2. Step 2: Convert to fraction form
    211,013.06/291,204.58 = 115,528.64/x
  3. Step 3: Cross multiply
    211,013.06x = 291,204.58 × 115,528.64
  4. Step 4: Simplify right side
    211,013.06x = 33,642,469,089.17
  5. Step 5: Solve for x
    x = 33,642,469,089.17/211,013.06
  6. Step 6: Final answer
    x = 159,433.11

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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.