Home / 122,269.50-168,573.96-79,172.37

Finding the Fourth Proportional to 122,269.50, 168,573.96 and 79,172.37

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Solution

The fourth proportional to 122,269.50, 168,573.96 and 79,172.37 is: 109,155.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,269.50 : 168,573.96 = 79,172.37 : x
  2. Step 2: Convert to fraction form
    122,269.50/168,573.96 = 79,172.37/x
  3. Step 3: Cross multiply
    122,269.50x = 168,573.96 × 79,172.37
  4. Step 4: Simplify right side
    122,269.50x = 13,346,399,933.49
  5. Step 5: Solve for x
    x = 13,346,399,933.49/122,269.50
  6. Step 6: Final answer
    x = 109,155.59

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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.