Home / 91,137.20-136,699.70-43,786.22

Finding the Fourth Proportional to 91,137.20, 136,699.70 and 43,786.22

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Solution

The fourth proportional to 91,137.20, 136,699.70 and 43,786.22 is: 65,676.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,137.20 : 136,699.70 = 43,786.22 : x
  2. Step 2: Convert to fraction form
    91,137.20/136,699.70 = 43,786.22/x
  3. Step 3: Cross multiply
    91,137.20x = 136,699.70 × 43,786.22
  4. Step 4: Simplify right side
    91,137.20x = 5,985,562,235.70
  5. Step 5: Solve for x
    x = 5,985,562,235.70/91,137.20
  6. Step 6: Final answer
    x = 65,676.39

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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.