Home / 186,519.72-257,388.03-105,936.66

Finding the Fourth Proportional to 186,519.72, 257,388.03 and 105,936.66

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Solution

The fourth proportional to 186,519.72, 257,388.03 and 105,936.66 is: 146,187.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,519.72 : 257,388.03 = 105,936.66 : x
  2. Step 2: Convert to fraction form
    186,519.72/257,388.03 = 105,936.66/x
  3. Step 3: Cross multiply
    186,519.72x = 257,388.03 × 105,936.66
  4. Step 4: Simplify right side
    186,519.72x = 27,266,828,222.18
  5. Step 5: Solve for x
    x = 27,266,828,222.18/186,519.72
  6. Step 6: Final answer
    x = 146,187.37

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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.