Home / 139,741.14-192,837.60-76,077.66

Finding the Fourth Proportional to 139,741.14, 192,837.60 and 76,077.66

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Solution

The fourth proportional to 139,741.14, 192,837.60 and 76,077.66 is: 104,984.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,741.14 : 192,837.60 = 76,077.66 : x
  2. Step 2: Convert to fraction form
    139,741.14/192,837.60 = 76,077.66/x
  3. Step 3: Cross multiply
    139,741.14x = 192,837.60 × 76,077.66
  4. Step 4: Simplify right side
    139,741.14x = 14,670,633,368.02
  5. Step 5: Solve for x
    x = 14,670,633,368.02/139,741.14
  6. Step 6: Final answer
    x = 104,984.35

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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.