Home / 143,100.04-214,696.70-71,985.97

Finding the Fourth Proportional to 143,100.04, 214,696.70 and 71,985.97

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Solution

The fourth proportional to 143,100.04, 214,696.70 and 71,985.97 is: 108,002.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,100.04 : 214,696.70 = 71,985.97 : x
  2. Step 2: Convert to fraction form
    143,100.04/214,696.70 = 71,985.97/x
  3. Step 3: Cross multiply
    143,100.04x = 214,696.70 × 71,985.97
  4. Step 4: Simplify right side
    143,100.04x = 15,455,150,281.57
  5. Step 5: Solve for x
    x = 15,455,150,281.57/143,100.04
  6. Step 6: Final answer
    x = 108,002.42

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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.