Home / 92,844.20-139,266.30-86,939.30

Finding the Fourth Proportional to 92,844.20, 139,266.30 and 86,939.30

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Solution

The fourth proportional to 92,844.20, 139,266.30 and 86,939.30 is: 130,408.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,844.20 : 139,266.30 = 86,939.30 : x
  2. Step 2: Convert to fraction form
    92,844.20/139,266.30 = 86,939.30/x
  3. Step 3: Cross multiply
    92,844.20x = 139,266.30 × 86,939.30
  4. Step 4: Simplify right side
    92,844.20x = 12,107,714,635.59
  5. Step 5: Solve for x
    x = 12,107,714,635.59/92,844.20
  6. Step 6: Final answer
    x = 130,408.95

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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.