Home / 120,395.58-166,099.66-68,715.55

Finding the Fourth Proportional to 120,395.58, 166,099.66 and 68,715.55

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Solution

The fourth proportional to 120,395.58, 166,099.66 and 68,715.55 is: 94,801.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,395.58 : 166,099.66 = 68,715.55 : x
  2. Step 2: Convert to fraction form
    120,395.58/166,099.66 = 68,715.55/x
  3. Step 3: Cross multiply
    120,395.58x = 166,099.66 × 68,715.55
  4. Step 4: Simplify right side
    120,395.58x = 11,413,628,525.26
  5. Step 5: Solve for x
    x = 11,413,628,525.26/120,395.58
  6. Step 6: Final answer
    x = 94,801.06

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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.