Home / 140,890.75-194,429.28-77,228.98

Finding the Fourth Proportional to 140,890.75, 194,429.28 and 77,228.98

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Solution

The fourth proportional to 140,890.75, 194,429.28 and 77,228.98 is: 106,576.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,890.75 : 194,429.28 = 77,228.98 : x
  2. Step 2: Convert to fraction form
    140,890.75/194,429.28 = 77,228.98/x
  3. Step 3: Cross multiply
    140,890.75x = 194,429.28 × 77,228.98
  4. Step 4: Simplify right side
    140,890.75x = 15,015,574,976.53
  5. Step 5: Solve for x
    x = 15,015,574,976.53/140,890.75
  6. Step 6: Final answer
    x = 106,576.02

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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.