Home / 123,994.24-171,111.68-67,405.44

Finding the Fourth Proportional to 123,994.24, 171,111.68 and 67,405.44

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Solution

The fourth proportional to 123,994.24, 171,111.68 and 67,405.44 is: 93,019.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,994.24 : 171,111.68 = 67,405.44 : x
  2. Step 2: Convert to fraction form
    123,994.24/171,111.68 = 67,405.44/x
  3. Step 3: Cross multiply
    123,994.24x = 171,111.68 × 67,405.44
  4. Step 4: Simplify right side
    123,994.24x = 11,533,858,079.54
  5. Step 5: Solve for x
    x = 11,533,858,079.54/123,994.24
  6. Step 6: Final answer
    x = 93,019.31

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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.