Home / 138,426.19-207,467.97-98,381.35

Finding the Fourth Proportional to 138,426.19, 207,467.97 and 98,381.35

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Solution

The fourth proportional to 138,426.19, 207,467.97 and 98,381.35 is: 147,450.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,426.19 : 207,467.97 = 98,381.35 : x
  2. Step 2: Convert to fraction form
    138,426.19/207,467.97 = 98,381.35/x
  3. Step 3: Cross multiply
    138,426.19x = 207,467.97 × 98,381.35
  4. Step 4: Simplify right side
    138,426.19x = 20,410,978,970.36
  5. Step 5: Solve for x
    x = 20,410,978,970.36/138,426.19
  6. Step 6: Final answer
    x = 147,450.27

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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.