Home / 113,901.40-170,852.10-82,408.60

Finding the Fourth Proportional to 113,901.40, 170,852.10 and 82,408.60

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Solution

The fourth proportional to 113,901.40, 170,852.10 and 82,408.60 is: 123,612.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,901.40 : 170,852.10 = 82,408.60 : x
  2. Step 2: Convert to fraction form
    113,901.40/170,852.10 = 82,408.60/x
  3. Step 3: Cross multiply
    113,901.40x = 170,852.10 × 82,408.60
  4. Step 4: Simplify right side
    113,901.40x = 14,079,682,368.06
  5. Step 5: Solve for x
    x = 14,079,682,368.06/113,901.40
  6. Step 6: Final answer
    x = 123,612.90

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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.