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Finding the Fourth Proportional to 185,076.66, 255,401.06 and 103,405.54

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Solution

The fourth proportional to 185,076.66, 255,401.06 and 103,405.54 is: 142,697.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,076.66 : 255,401.06 = 103,405.54 : x
  2. Step 2: Convert to fraction form
    185,076.66/255,401.06 = 103,405.54/x
  3. Step 3: Cross multiply
    185,076.66x = 255,401.06 × 103,405.54
  4. Step 4: Simplify right side
    185,076.66x = 26,409,884,525.87
  5. Step 5: Solve for x
    x = 26,409,884,525.87/185,076.66
  6. Step 6: Final answer
    x = 142,697.00

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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.