Home / 92,842.15-139,099.20-76,111.60

Finding the Fourth Proportional to 92,842.15, 139,099.20 and 76,111.60

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Solution

The fourth proportional to 92,842.15, 139,099.20 and 76,111.60 is: 114,032.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,842.15 : 139,099.20 = 76,111.60 : x
  2. Step 2: Convert to fraction form
    92,842.15/139,099.20 = 76,111.60/x
  3. Step 3: Cross multiply
    92,842.15x = 139,099.20 × 76,111.60
  4. Step 4: Simplify right side
    92,842.15x = 10,587,062,670.72
  5. Step 5: Solve for x
    x = 10,587,062,670.72/92,842.15
  6. Step 6: Final answer
    x = 114,032.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.