Home / 137,881.82-190,247.39-80,495.08

Finding the Fourth Proportional to 137,881.82, 190,247.39 and 80,495.08

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Solution

The fourth proportional to 137,881.82, 190,247.39 and 80,495.08 is: 111,065.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,881.82 : 190,247.39 = 80,495.08 : x
  2. Step 2: Convert to fraction form
    137,881.82/190,247.39 = 80,495.08/x
  3. Step 3: Cross multiply
    137,881.82x = 190,247.39 × 80,495.08
  4. Step 4: Simplify right side
    137,881.82x = 15,313,978,877.84
  5. Step 5: Solve for x
    x = 15,313,978,877.84/137,881.82
  6. Step 6: Final answer
    x = 111,065.98

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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.