Home / 101,243.75-151,783.61-42,123.67

Finding the Fourth Proportional to 101,243.75, 151,783.61 and 42,123.67

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Solution

The fourth proportional to 101,243.75, 151,783.61 and 42,123.67 is: 63,151.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,243.75 : 151,783.61 = 42,123.67 : x
  2. Step 2: Convert to fraction form
    101,243.75/151,783.61 = 42,123.67/x
  3. Step 3: Cross multiply
    101,243.75x = 151,783.61 × 42,123.67
  4. Step 4: Simplify right side
    101,243.75x = 6,393,682,713.57
  5. Step 5: Solve for x
    x = 6,393,682,713.57/101,243.75
  6. Step 6: Final answer
    x = 63,151.38

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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.