Home / 122,457.82-168,991.71-68,742.94

Finding the Fourth Proportional to 122,457.82, 168,991.71 and 68,742.94

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Solution

The fourth proportional to 122,457.82, 168,991.71 and 68,742.94 is: 94,865.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,457.82 : 168,991.71 = 68,742.94 : x
  2. Step 2: Convert to fraction form
    122,457.82/168,991.71 = 68,742.94/x
  3. Step 3: Cross multiply
    122,457.82x = 168,991.71 × 68,742.94
  4. Step 4: Simplify right side
    122,457.82x = 11,616,986,981.03
  5. Step 5: Solve for x
    x = 11,616,986,981.03/122,457.82
  6. Step 6: Final answer
    x = 94,865.21

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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.