Home / 142,119.42-212,975.73-104,383.50

Finding the Fourth Proportional to 142,119.42, 212,975.73 and 104,383.50

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Solution

The fourth proportional to 142,119.42, 212,975.73 and 104,383.50 is: 156,425.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,119.42 : 212,975.73 = 104,383.50 : x
  2. Step 2: Convert to fraction form
    142,119.42/212,975.73 = 104,383.50/x
  3. Step 3: Cross multiply
    142,119.42x = 212,975.73 × 104,383.50
  4. Step 4: Simplify right side
    142,119.42x = 22,231,152,112.46
  5. Step 5: Solve for x
    x = 22,231,152,112.46/142,119.42
  6. Step 6: Final answer
    x = 156,425.86

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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.