Home / 115,739.80-173,868.90-111,016.60

Finding the Fourth Proportional to 115,739.80, 173,868.90 and 111,016.60

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Solution

The fourth proportional to 115,739.80, 173,868.90 and 111,016.60 is: 166,773.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,739.80 : 173,868.90 = 111,016.60 : x
  2. Step 2: Convert to fraction form
    115,739.80/173,868.90 = 111,016.60/x
  3. Step 3: Cross multiply
    115,739.80x = 173,868.90 × 111,016.60
  4. Step 4: Simplify right side
    115,739.80x = 19,302,334,123.74
  5. Step 5: Solve for x
    x = 19,302,334,123.74/115,739.80
  6. Step 6: Final answer
    x = 166,773.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.