Home / 117,360.84-161,942.40-66,380.52

Finding the Fourth Proportional to 117,360.84, 161,942.40 and 66,380.52

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Solution

The fourth proportional to 117,360.84, 161,942.40 and 66,380.52 is: 91,596.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,360.84 : 161,942.40 = 66,380.52 : x
  2. Step 2: Convert to fraction form
    117,360.84/161,942.40 = 66,380.52/x
  3. Step 3: Cross multiply
    117,360.84x = 161,942.40 × 66,380.52
  4. Step 4: Simplify right side
    117,360.84x = 10,749,820,722.05
  5. Step 5: Solve for x
    x = 10,749,820,722.05/117,360.84
  6. Step 6: Final answer
    x = 91,596.32

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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.