Home / 120,325.16-166,037.64-66,607.58

Finding the Fourth Proportional to 120,325.16, 166,037.64 and 66,607.58

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Solution

The fourth proportional to 120,325.16, 166,037.64 and 66,607.58 is: 91,912.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,325.16 : 166,037.64 = 66,607.58 : x
  2. Step 2: Convert to fraction form
    120,325.16/166,037.64 = 66,607.58/x
  3. Step 3: Cross multiply
    120,325.16x = 166,037.64 × 66,607.58
  4. Step 4: Simplify right side
    120,325.16x = 11,059,365,389.31
  5. Step 5: Solve for x
    x = 11,059,365,389.31/120,325.16
  6. Step 6: Final answer
    x = 91,912.33

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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.