Home / 131,054.47-196,332.41-67,779.81

Finding the Fourth Proportional to 131,054.47, 196,332.41 and 67,779.81

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Solution

The fourth proportional to 131,054.47, 196,332.41 and 67,779.81 is: 101,540.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,054.47 : 196,332.41 = 67,779.81 : x
  2. Step 2: Convert to fraction form
    131,054.47/196,332.41 = 67,779.81/x
  3. Step 3: Cross multiply
    131,054.47x = 196,332.41 × 67,779.81
  4. Step 4: Simplify right side
    131,054.47x = 13,307,373,616.09
  5. Step 5: Solve for x
    x = 13,307,373,616.09/131,054.47
  6. Step 6: Final answer
    x = 101,540.79

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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.