Home / 143,467.40-214,941.90-122,731.40

Finding the Fourth Proportional to 143,467.40, 214,941.90 and 122,731.40

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Solution

The fourth proportional to 143,467.40, 214,941.90 and 122,731.40 is: 183,875.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,467.40 : 214,941.90 = 122,731.40 : x
  2. Step 2: Convert to fraction form
    143,467.40/214,941.90 = 122,731.40/x
  3. Step 3: Cross multiply
    143,467.40x = 214,941.90 × 122,731.40
  4. Step 4: Simplify right side
    143,467.40x = 26,380,120,305.66
  5. Step 5: Solve for x
    x = 26,380,120,305.66/143,467.40
  6. Step 6: Final answer
    x = 183,875.36

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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.