Home / 122,021.79-168,711.38-106,871.01

Finding the Fourth Proportional to 122,021.79, 168,711.38 and 106,871.01

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Solution

The fourth proportional to 122,021.79, 168,711.38 and 106,871.01 is: 147,763.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,021.79 : 168,711.38 = 106,871.01 : x
  2. Step 2: Convert to fraction form
    122,021.79/168,711.38 = 106,871.01/x
  3. Step 3: Cross multiply
    122,021.79x = 168,711.38 × 106,871.01
  4. Step 4: Simplify right side
    122,021.79x = 18,030,355,579.09
  5. Step 5: Solve for x
    x = 18,030,355,579.09/122,021.79
  6. Step 6: Final answer
    x = 147,763.41

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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.