Home / 142,028.88-212,827.79-104,409.75

Finding the Fourth Proportional to 142,028.88, 212,827.79 and 104,409.75

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Solution

The fourth proportional to 142,028.88, 212,827.79 and 104,409.75 is: 156,456.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,028.88 : 212,827.79 = 104,409.75 : x
  2. Step 2: Convert to fraction form
    142,028.88/212,827.79 = 104,409.75/x
  3. Step 3: Cross multiply
    142,028.88x = 212,827.79 × 104,409.75
  4. Step 4: Simplify right side
    142,028.88x = 22,221,295,824.90
  5. Step 5: Solve for x
    x = 22,221,295,824.90/142,028.88
  6. Step 6: Final answer
    x = 156,456.18

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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.