Home / 137,093.89-189,188.27-76,663.84

Finding the Fourth Proportional to 137,093.89, 189,188.27 and 76,663.84

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Solution

The fourth proportional to 137,093.89, 189,188.27 and 76,663.84 is: 105,795.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,093.89 : 189,188.27 = 76,663.84 : x
  2. Step 2: Convert to fraction form
    137,093.89/189,188.27 = 76,663.84/x
  3. Step 3: Cross multiply
    137,093.89x = 189,188.27 × 76,663.84
  4. Step 4: Simplify right side
    137,093.89x = 14,503,898,692.36
  5. Step 5: Solve for x
    x = 14,503,898,692.36/137,093.89
  6. Step 6: Final answer
    x = 105,795.37

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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.