Home / 121,994.82-168,314.49-68,271.30

Finding the Fourth Proportional to 121,994.82, 168,314.49 and 68,271.30

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Solution

The fourth proportional to 121,994.82, 168,314.49 and 68,271.30 is: 94,192.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,994.82 : 168,314.49 = 68,271.30 : x
  2. Step 2: Convert to fraction form
    121,994.82/168,314.49 = 68,271.30/x
  3. Step 3: Cross multiply
    121,994.82x = 168,314.49 × 68,271.30
  4. Step 4: Simplify right side
    121,994.82x = 11,491,049,041.14
  5. Step 5: Solve for x
    x = 11,491,049,041.14/121,994.82
  6. Step 6: Final answer
    x = 94,192.93

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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.