Home / 135,274.55-186,643.85-80,804.43

Finding the Fourth Proportional to 135,274.55, 186,643.85 and 80,804.43

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Solution

The fourth proportional to 135,274.55, 186,643.85 and 80,804.43 is: 111,489.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,274.55 : 186,643.85 = 80,804.43 : x
  2. Step 2: Convert to fraction form
    135,274.55/186,643.85 = 80,804.43/x
  3. Step 3: Cross multiply
    135,274.55x = 186,643.85 × 80,804.43
  4. Step 4: Simplify right side
    135,274.55x = 15,081,649,888.34
  5. Step 5: Solve for x
    x = 15,081,649,888.34/135,274.55
  6. Step 6: Final answer
    x = 111,489.19

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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.