Home / 140,189.24-210,283.82-77,408.54

Finding the Fourth Proportional to 140,189.24, 210,283.82 and 77,408.54

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Solution

The fourth proportional to 140,189.24, 210,283.82 and 77,408.54 is: 116,112.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,189.24 : 210,283.82 = 77,408.54 : x
  2. Step 2: Convert to fraction form
    140,189.24/210,283.82 = 77,408.54/x
  3. Step 3: Cross multiply
    140,189.24x = 210,283.82 × 77,408.54
  4. Step 4: Simplify right side
    140,189.24x = 16,277,763,491.82
  5. Step 5: Solve for x
    x = 16,277,763,491.82/140,189.24
  6. Step 6: Final answer
    x = 116,112.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.