Home / 210,936.66-291,093.06-115,449.51

Finding the Fourth Proportional to 210,936.66, 291,093.06 and 115,449.51

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Solution

The fourth proportional to 210,936.66, 291,093.06 and 115,449.51 is: 159,320.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,936.66 : 291,093.06 = 115,449.51 : x
  2. Step 2: Convert to fraction form
    210,936.66/291,093.06 = 115,449.51/x
  3. Step 3: Cross multiply
    210,936.66x = 291,093.06 × 115,449.51
  4. Step 4: Simplify right side
    210,936.66x = 33,606,551,141.40
  5. Step 5: Solve for x
    x = 33,606,551,141.40/210,936.66
  6. Step 6: Final answer
    x = 159,320.58

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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.