Home / 100,176.44-138,243.54-62,450.84

Finding the Fourth Proportional to 100,176.44, 138,243.54 and 62,450.84

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Solution

The fourth proportional to 100,176.44, 138,243.54 and 62,450.84 is: 86,182.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,176.44 : 138,243.54 = 62,450.84 : x
  2. Step 2: Convert to fraction form
    100,176.44/138,243.54 = 62,450.84/x
  3. Step 3: Cross multiply
    100,176.44x = 138,243.54 × 62,450.84
  4. Step 4: Simplify right side
    100,176.44x = 8,633,425,197.57
  5. Step 5: Solve for x
    x = 8,633,425,197.57/100,176.44
  6. Step 6: Final answer
    x = 86,182.19

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1.5x scale

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.