Home / 100,898.01-139,240.22-55,576.19

Finding the Fourth Proportional to 100,898.01, 139,240.22 and 55,576.19

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Solution

The fourth proportional to 100,898.01, 139,240.22 and 55,576.19 is: 76,695.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,898.01 : 139,240.22 = 55,576.19 : x
  2. Step 2: Convert to fraction form
    100,898.01/139,240.22 = 55,576.19/x
  3. Step 3: Cross multiply
    100,898.01x = 139,240.22 × 55,576.19
  4. Step 4: Simplify right side
    100,898.01x = 7,738,440,992.58
  5. Step 5: Solve for x
    x = 7,738,440,992.58/100,898.01
  6. Step 6: Final answer
    x = 76,695.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.