Home / 140,629.95-194,030.88-80,178.54

Finding the Fourth Proportional to 140,629.95, 194,030.88 and 80,178.54

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Solution

The fourth proportional to 140,629.95, 194,030.88 and 80,178.54 is: 110,624.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,629.95 : 194,030.88 = 80,178.54 : x
  2. Step 2: Convert to fraction form
    140,629.95/194,030.88 = 80,178.54/x
  3. Step 3: Cross multiply
    140,629.95x = 194,030.88 × 80,178.54
  4. Step 4: Simplify right side
    140,629.95x = 15,557,112,673.32
  5. Step 5: Solve for x
    x = 15,557,112,673.32/140,629.95
  6. Step 6: Final answer
    x = 110,624.46

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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.