Home / 136,768.08-188,749.44-76,350.60

Finding the Fourth Proportional to 136,768.08, 188,749.44 and 76,350.60

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Solution

The fourth proportional to 136,768.08, 188,749.44 and 76,350.60 is: 105,369.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,768.08 : 188,749.44 = 76,350.60 : x
  2. Step 2: Convert to fraction form
    136,768.08/188,749.44 = 76,350.60/x
  3. Step 3: Cross multiply
    136,768.08x = 188,749.44 × 76,350.60
  4. Step 4: Simplify right side
    136,768.08x = 14,411,132,993.66
  5. Step 5: Solve for x
    x = 14,411,132,993.66/136,768.08
  6. Step 6: Final answer
    x = 105,369.13

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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.