Home / 136,289.11-188,077.53-75,858.79

Finding the Fourth Proportional to 136,289.11, 188,077.53 and 75,858.79

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Solution

The fourth proportional to 136,289.11, 188,077.53 and 75,858.79 is: 104,684.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,289.11 : 188,077.53 = 75,858.79 : x
  2. Step 2: Convert to fraction form
    136,289.11/188,077.53 = 75,858.79/x
  3. Step 3: Cross multiply
    136,289.11x = 188,077.53 × 75,858.79
  4. Step 4: Simplify right side
    136,289.11x = 14,267,333,851.99
  5. Step 5: Solve for x
    x = 14,267,333,851.99/136,289.11
  6. Step 6: Final answer
    x = 104,684.33

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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.