Home / 140,336.37-193,677.35-76,683.60

Finding the Fourth Proportional to 140,336.37, 193,677.35 and 76,683.60

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Solution

The fourth proportional to 140,336.37, 193,677.35 and 76,683.60 is: 105,830.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,336.37 : 193,677.35 = 76,683.60 : x
  2. Step 2: Convert to fraction form
    140,336.37/193,677.35 = 76,683.60/x
  3. Step 3: Cross multiply
    140,336.37x = 193,677.35 × 76,683.60
  4. Step 4: Simplify right side
    140,336.37x = 14,851,876,053.04
  5. Step 5: Solve for x
    x = 14,851,876,053.04/140,336.37
  6. Step 6: Final answer
    x = 105,830.56

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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.