Home / 140,564.66-193,975.89-76,902.98

Finding the Fourth Proportional to 140,564.66, 193,975.89 and 76,902.98

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Solution

The fourth proportional to 140,564.66, 193,975.89 and 76,902.98 is: 106,124.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,564.66 : 193,975.89 = 76,902.98 : x
  2. Step 2: Convert to fraction form
    140,564.66/193,975.89 = 76,902.98/x
  3. Step 3: Cross multiply
    140,564.66x = 193,975.89 × 76,902.98
  4. Step 4: Simplify right side
    140,564.66x = 14,917,323,989.15
  5. Step 5: Solve for x
    x = 14,917,323,989.15/140,564.66
  6. Step 6: Final answer
    x = 106,124.28

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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.