Home / 143,180.70-214,676.22-68,312.40

Finding the Fourth Proportional to 143,180.70, 214,676.22 and 68,312.40

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Solution

The fourth proportional to 143,180.70, 214,676.22 and 68,312.40 is: 102,423.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,180.70 : 214,676.22 = 68,312.40 : x
  2. Step 2: Convert to fraction form
    143,180.70/214,676.22 = 68,312.40/x
  3. Step 3: Cross multiply
    143,180.70x = 214,676.22 × 68,312.40
  4. Step 4: Simplify right side
    143,180.70x = 14,665,047,811.13
  5. Step 5: Solve for x
    x = 14,665,047,811.13/143,180.70
  6. Step 6: Final answer
    x = 102,423.36

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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.