Home / 131,054.49-196,332.39-67,779.81

Finding the Fourth Proportional to 131,054.49, 196,332.39 and 67,779.81

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Solution

The fourth proportional to 131,054.49, 196,332.39 and 67,779.81 is: 101,540.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,054.49 : 196,332.39 = 67,779.81 : x
  2. Step 2: Convert to fraction form
    131,054.49/196,332.39 = 67,779.81/x
  3. Step 3: Cross multiply
    131,054.49x = 196,332.39 × 67,779.81
  4. Step 4: Simplify right side
    131,054.49x = 13,307,372,091.05
  5. Step 5: Solve for x
    x = 13,307,372,091.05/131,054.49
  6. Step 6: Final answer
    x = 101,540.76

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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.