Home / 135,112.41-186,429.47-84,788.73

Finding the Fourth Proportional to 135,112.41, 186,429.47 and 84,788.73

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Solution

The fourth proportional to 135,112.41, 186,429.47 and 84,788.73 is: 116,992.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,112.41 : 186,429.47 = 84,788.73 : x
  2. Step 2: Convert to fraction form
    135,112.41/186,429.47 = 84,788.73/x
  3. Step 3: Cross multiply
    135,112.41x = 186,429.47 × 84,788.73
  4. Step 4: Simplify right side
    135,112.41x = 15,807,117,571.93
  5. Step 5: Solve for x
    x = 15,807,117,571.93/135,112.41
  6. Step 6: Final answer
    x = 116,992.34

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1.5x scale

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.