Home / 136,723.03-188,677.56-76,290.01

Finding the Fourth Proportional to 136,723.03, 188,677.56 and 76,290.01

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Solution

The fourth proportional to 136,723.03, 188,677.56 and 76,290.01 is: 105,280.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,723.03 : 188,677.56 = 76,290.01 : x
  2. Step 2: Convert to fraction form
    136,723.03/188,677.56 = 76,290.01/x
  3. Step 3: Cross multiply
    136,723.03x = 188,677.56 × 76,290.01
  4. Step 4: Simplify right side
    136,723.03x = 14,394,212,939.18
  5. Step 5: Solve for x
    x = 14,394,212,939.18/136,723.03
  6. Step 6: Final answer
    x = 105,280.09

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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.