Home / 140,601.84-194,030.55-76,939.64

Finding the Fourth Proportional to 140,601.84, 194,030.55 and 76,939.64

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Solution

The fourth proportional to 140,601.84, 194,030.55 and 76,939.64 is: 106,176.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,601.84 : 194,030.55 = 76,939.64 : x
  2. Step 2: Convert to fraction form
    140,601.84/194,030.55 = 76,939.64/x
  3. Step 3: Cross multiply
    140,601.84x = 194,030.55 × 76,939.64
  4. Step 4: Simplify right side
    140,601.84x = 14,928,641,075.79
  5. Step 5: Solve for x
    x = 14,928,641,075.79/140,601.84
  6. Step 6: Final answer
    x = 106,176.71

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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.