Home / 140,734.23-194,211.36-77,072.07

Finding the Fourth Proportional to 140,734.23, 194,211.36 and 77,072.07

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Solution

The fourth proportional to 140,734.23, 194,211.36 and 77,072.07 is: 106,358.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,734.23 : 194,211.36 = 77,072.07 : x
  2. Step 2: Convert to fraction form
    140,734.23/194,211.36 = 77,072.07/x
  3. Step 3: Cross multiply
    140,734.23x = 194,211.36 × 77,072.07
  4. Step 4: Simplify right side
    140,734.23x = 14,968,271,532.72
  5. Step 5: Solve for x
    x = 14,968,271,532.72/140,734.23
  6. Step 6: Final answer
    x = 106,358.43

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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.