Home / 210,935.66-291,091.68-115,448.51

Finding the Fourth Proportional to 210,935.66, 291,091.68 and 115,448.51

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Solution

The fourth proportional to 210,935.66, 291,091.68 and 115,448.51 is: 159,319.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,935.66 : 291,091.68 = 115,448.51 : x
  2. Step 2: Convert to fraction form
    210,935.66/291,091.68 = 115,448.51/x
  3. Step 3: Cross multiply
    210,935.66x = 291,091.68 × 115,448.51
  4. Step 4: Simplify right side
    210,935.66x = 33,606,099,273.94
  5. Step 5: Solve for x
    x = 33,606,099,273.94/210,935.66
  6. Step 6: Final answer
    x = 159,319.20

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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.