Home / 134,379.96-185,424.78-80,653.56

Finding the Fourth Proportional to 134,379.96, 185,424.78 and 80,653.56

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Solution

The fourth proportional to 134,379.96, 185,424.78 and 80,653.56 is: 111,290.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,379.96 : 185,424.78 = 80,653.56 : x
  2. Step 2: Convert to fraction form
    134,379.96/185,424.78 = 80,653.56/x
  3. Step 3: Cross multiply
    134,379.96x = 185,424.78 × 80,653.56
  4. Step 4: Simplify right side
    134,379.96x = 14,955,168,619.22
  5. Step 5: Solve for x
    x = 14,955,168,619.22/134,379.96
  6. Step 6: Final answer
    x = 111,290.17

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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.