Home / 140,304.34-193,612.75-76,629.83

Finding the Fourth Proportional to 140,304.34, 193,612.75 and 76,629.83

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Solution

The fourth proportional to 140,304.34, 193,612.75 and 76,629.83 is: 105,745.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,304.34 : 193,612.75 = 76,629.83 : x
  2. Step 2: Convert to fraction form
    140,304.34/193,612.75 = 76,629.83/x
  3. Step 3: Cross multiply
    140,304.34x = 193,612.75 × 76,629.83
  4. Step 4: Simplify right side
    140,304.34x = 14,836,512,410.79
  5. Step 5: Solve for x
    x = 14,836,512,410.79/140,304.34
  6. Step 6: Final answer
    x = 105,745.22

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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.