Home / 92,714.20-139,071.30-82,872.70

Finding the Fourth Proportional to 92,714.20, 139,071.30 and 82,872.70

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Solution

The fourth proportional to 92,714.20, 139,071.30 and 82,872.70 is: 124,309.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,714.20 : 139,071.30 = 82,872.70 : x
  2. Step 2: Convert to fraction form
    92,714.20/139,071.30 = 82,872.70/x
  3. Step 3: Cross multiply
    92,714.20x = 139,071.30 × 82,872.70
  4. Step 4: Simplify right side
    92,714.20x = 11,525,214,123.51
  5. Step 5: Solve for x
    x = 11,525,214,123.51/92,714.20
  6. Step 6: Final answer
    x = 124,309.05

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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.