Home / 143,000.03-214,450.84-54,278.91

Finding the Fourth Proportional to 143,000.03, 214,450.84 and 54,278.91

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Solution

The fourth proportional to 143,000.03, 214,450.84 and 54,278.91 is: 81,399.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,000.03 : 214,450.84 = 54,278.91 : x
  2. Step 2: Convert to fraction form
    143,000.03/214,450.84 = 54,278.91/x
  3. Step 3: Cross multiply
    143,000.03x = 214,450.84 × 54,278.91
  4. Step 4: Simplify right side
    143,000.03x = 11,640,157,911.63
  5. Step 5: Solve for x
    x = 11,640,157,911.63/143,000.03
  6. Step 6: Final answer
    x = 81,399.69

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1.5x scale

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.