Home / 140,835.06-194,351.31-77,172.72

Finding the Fourth Proportional to 140,835.06, 194,351.31 and 77,172.72

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Solution

The fourth proportional to 140,835.06, 194,351.31 and 77,172.72 is: 106,497.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,835.06 : 194,351.31 = 77,172.72 : x
  2. Step 2: Convert to fraction form
    140,835.06/194,351.31 = 77,172.72/x
  3. Step 3: Cross multiply
    140,835.06x = 194,351.31 × 77,172.72
  4. Step 4: Simplify right side
    140,835.06x = 14,998,619,228.26
  5. Step 5: Solve for x
    x = 14,998,619,228.26/140,835.06
  6. Step 6: Final answer
    x = 106,497.77

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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.