Home / 143,004.40-214,506.60-136,937.20

Finding the Fourth Proportional to 143,004.40, 214,506.60 and 136,937.20

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Solution

The fourth proportional to 143,004.40, 214,506.60 and 136,937.20 is: 205,405.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,004.40 : 214,506.60 = 136,937.20 : x
  2. Step 2: Convert to fraction form
    143,004.40/214,506.60 = 136,937.20/x
  3. Step 3: Cross multiply
    143,004.40x = 214,506.60 × 136,937.20
  4. Step 4: Simplify right side
    143,004.40x = 29,373,933,185.52
  5. Step 5: Solve for x
    x = 29,373,933,185.52/143,004.40
  6. Step 6: Final answer
    x = 205,405.80

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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.