Home / 122,375.14-168,900.81-79,970.02

Finding the Fourth Proportional to 122,375.14, 168,900.81 and 79,970.02

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Solution

The fourth proportional to 122,375.14, 168,900.81 and 79,970.02 is: 110,373.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,375.14 : 168,900.81 = 79,970.02 : x
  2. Step 2: Convert to fraction form
    122,375.14/168,900.81 = 79,970.02/x
  3. Step 3: Cross multiply
    122,375.14x = 168,900.81 × 79,970.02
  4. Step 4: Simplify right side
    122,375.14x = 13,507,001,153.72
  5. Step 5: Solve for x
    x = 13,507,001,153.72/122,375.14
  6. Step 6: Final answer
    x = 110,373.73

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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.