Home / 140,821.50-194,333.73-77,161.74

Finding the Fourth Proportional to 140,821.50, 194,333.73 and 77,161.74

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Solution

The fourth proportional to 140,821.50, 194,333.73 and 77,161.74 is: 106,483.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,821.50 : 194,333.73 = 77,161.74 : x
  2. Step 2: Convert to fraction form
    140,821.50/194,333.73 = 77,161.74/x
  3. Step 3: Cross multiply
    140,821.50x = 194,333.73 × 77,161.74
  4. Step 4: Simplify right side
    140,821.50x = 14,995,128,747.49
  5. Step 5: Solve for x
    x = 14,995,128,747.49/140,821.50
  6. Step 6: Final answer
    x = 106,483.23

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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.