Home / 210,965.23-291,134.73-115,469.88

Finding the Fourth Proportional to 210,965.23, 291,134.73 and 115,469.88

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Solution

The fourth proportional to 210,965.23, 291,134.73 and 115,469.88 is: 159,349.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,965.23 : 291,134.73 = 115,469.88 : x
  2. Step 2: Convert to fraction form
    210,965.23/291,134.73 = 115,469.88/x
  3. Step 3: Cross multiply
    210,965.23x = 291,134.73 × 115,469.88
  4. Step 4: Simplify right side
    210,965.23x = 33,617,290,881.26
  5. Step 5: Solve for x
    x = 33,617,290,881.26/210,965.23
  6. Step 6: Final answer
    x = 159,349.91

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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.