Home / 142,028.26-212,839.32-104,292.28

Finding the Fourth Proportional to 142,028.26, 212,839.32 and 104,292.28

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Solution

The fourth proportional to 142,028.26, 212,839.32 and 104,292.28 is: 156,289.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,028.26 : 212,839.32 = 104,292.28 : x
  2. Step 2: Convert to fraction form
    142,028.26/212,839.32 = 104,292.28/x
  3. Step 3: Cross multiply
    142,028.26x = 212,839.32 × 104,292.28
  4. Step 4: Simplify right side
    142,028.26x = 22,197,497,956.45
  5. Step 5: Solve for x
    x = 22,197,497,956.45/142,028.26
  6. Step 6: Final answer
    x = 156,289.30

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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.