Home / 105,222.22-157,908.84-71,403.94

Finding the Fourth Proportional to 105,222.22, 157,908.84 and 71,403.94

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Solution

The fourth proportional to 105,222.22, 157,908.84 and 71,403.94 is: 107,157.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,222.22 : 157,908.84 = 71,403.94 : x
  2. Step 2: Convert to fraction form
    105,222.22/157,908.84 = 71,403.94/x
  3. Step 3: Cross multiply
    105,222.22x = 157,908.84 × 71,403.94
  4. Step 4: Simplify right side
    105,222.22x = 11,275,313,336.83
  5. Step 5: Solve for x
    x = 11,275,313,336.83/105,222.22
  6. Step 6: Final answer
    x = 107,157.15

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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.