Home / 134,782.72-202,139.36-39,990.56

Finding the Fourth Proportional to 134,782.72, 202,139.36 and 39,990.56

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Solution

The fourth proportional to 134,782.72, 202,139.36 and 39,990.56 is: 59,975.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,782.72 : 202,139.36 = 39,990.56 : x
  2. Step 2: Convert to fraction form
    134,782.72/202,139.36 = 39,990.56/x
  3. Step 3: Cross multiply
    134,782.72x = 202,139.36 × 39,990.56
  4. Step 4: Simplify right side
    134,782.72x = 8,083,666,204.44
  5. Step 5: Solve for x
    x = 8,083,666,204.44/134,782.72
  6. Step 6: Final answer
    x = 59,975.54

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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.