Home / 136,440.93-188,302.34-76,021.41

Finding the Fourth Proportional to 136,440.93, 188,302.34 and 76,021.41

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Solution

The fourth proportional to 136,440.93, 188,302.34 and 76,021.41 is: 104,917.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,440.93 : 188,302.34 = 76,021.41 : x
  2. Step 2: Convert to fraction form
    136,440.93/188,302.34 = 76,021.41/x
  3. Step 3: Cross multiply
    136,440.93x = 188,302.34 × 76,021.41
  4. Step 4: Simplify right side
    136,440.93x = 14,315,009,393.10
  5. Step 5: Solve for x
    x = 14,315,009,393.10/136,440.93
  6. Step 6: Final answer
    x = 104,917.27

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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.