Home / 136,282.78-188,071.23-75,855.97

Finding the Fourth Proportional to 136,282.78, 188,071.23 and 75,855.97

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Solution

The fourth proportional to 136,282.78, 188,071.23 and 75,855.97 is: 104,681.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,282.78 : 188,071.23 = 75,855.97 : x
  2. Step 2: Convert to fraction form
    136,282.78/188,071.23 = 75,855.97/x
  3. Step 3: Cross multiply
    136,282.78x = 188,071.23 × 75,855.97
  4. Step 4: Simplify right side
    136,282.78x = 14,266,325,580.74
  5. Step 5: Solve for x
    x = 14,266,325,580.74/136,282.78
  6. Step 6: Final answer
    x = 104,681.79

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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.