Home / 108,040.77-162,078.44-45,711.81

Finding the Fourth Proportional to 108,040.77, 162,078.44 and 45,711.81

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Solution

The fourth proportional to 108,040.77, 162,078.44 and 45,711.81 is: 68,575.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,040.77 : 162,078.44 = 45,711.81 : x
  2. Step 2: Convert to fraction form
    108,040.77/162,078.44 = 45,711.81/x
  3. Step 3: Cross multiply
    108,040.77x = 162,078.44 × 45,711.81
  4. Step 4: Simplify right side
    108,040.77x = 7,408,898,625.82
  5. Step 5: Solve for x
    x = 7,408,898,625.82/108,040.77
  6. Step 6: Final answer
    x = 68,575.03

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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.