Home / 120,505.71-166,295.00-66,789.58

Finding the Fourth Proportional to 120,505.71, 166,295.00 and 66,789.58

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Solution

The fourth proportional to 120,505.71, 166,295.00 and 66,789.58 is: 92,168.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,505.71 : 166,295.00 = 66,789.58 : x
  2. Step 2: Convert to fraction form
    120,505.71/166,295.00 = 66,789.58/x
  3. Step 3: Cross multiply
    120,505.71x = 166,295.00 × 66,789.58
  4. Step 4: Simplify right side
    120,505.71x = 11,106,772,957.34
  5. Step 5: Solve for x
    x = 11,106,772,957.34/120,505.71
  6. Step 6: Final answer
    x = 92,168.02

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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.