Home / 139,904.55-193,072.37-76,246.44

Finding the Fourth Proportional to 139,904.55, 193,072.37 and 76,246.44

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Solution

The fourth proportional to 139,904.55, 193,072.37 and 76,246.44 is: 105,222.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,904.55 : 193,072.37 = 76,246.44 : x
  2. Step 2: Convert to fraction form
    139,904.55/193,072.37 = 76,246.44/x
  3. Step 3: Cross multiply
    139,904.55x = 193,072.37 × 76,246.44
  4. Step 4: Simplify right side
    139,904.55x = 14,721,080,493.63
  5. Step 5: Solve for x
    x = 14,721,080,493.63/139,904.55
  6. Step 6: Final answer
    x = 105,222.31

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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.