Home / 211,186.70-291,444.93-115,693.37

Finding the Fourth Proportional to 211,186.70, 291,444.93 and 115,693.37

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Solution

The fourth proportional to 211,186.70, 291,444.93 and 115,693.37 is: 159,660.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,186.70 : 291,444.93 = 115,693.37 : x
  2. Step 2: Convert to fraction form
    211,186.70/291,444.93 = 115,693.37/x
  3. Step 3: Cross multiply
    211,186.70x = 291,444.93 × 115,693.37
  4. Step 4: Simplify right side
    211,186.70x = 33,718,244,663.89
  5. Step 5: Solve for x
    x = 33,718,244,663.89/211,186.70
  6. Step 6: Final answer
    x = 159,660.84

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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.