Home / 104,211.45-143,811.93-56,464.79

Finding the Fourth Proportional to 104,211.45, 143,811.93 and 56,464.79

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Solution

The fourth proportional to 104,211.45, 143,811.93 and 56,464.79 is: 77,921.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,211.45 : 143,811.93 = 56,464.79 : x
  2. Step 2: Convert to fraction form
    104,211.45/143,811.93 = 56,464.79/x
  3. Step 3: Cross multiply
    104,211.45x = 143,811.93 × 56,464.79
  4. Step 4: Simplify right side
    104,211.45x = 8,120,309,707.89
  5. Step 5: Solve for x
    x = 8,120,309,707.89/104,211.45
  6. Step 6: Final answer
    x = 77,921.47

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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.