Home / 185,076.51-255,405.67-100,193.57

Finding the Fourth Proportional to 185,076.51, 255,405.67 and 100,193.57

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Solution

The fourth proportional to 185,076.51, 255,405.67 and 100,193.57 is: 138,267.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,076.51 : 255,405.67 = 100,193.57 : x
  2. Step 2: Convert to fraction form
    185,076.51/255,405.67 = 100,193.57/x
  3. Step 3: Cross multiply
    185,076.51x = 255,405.67 × 100,193.57
  4. Step 4: Simplify right side
    185,076.51x = 25,590,007,306.05
  5. Step 5: Solve for x
    x = 25,590,007,306.05/185,076.51
  6. Step 6: Final answer
    x = 138,267.18

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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.