Home / 105,536.86-145,635.44-57,780.97

Finding the Fourth Proportional to 105,536.86, 145,635.44 and 57,780.97

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Solution

The fourth proportional to 105,536.86, 145,635.44 and 57,780.97 is: 79,734.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,536.86 : 145,635.44 = 57,780.97 : x
  2. Step 2: Convert to fraction form
    105,536.86/145,635.44 = 57,780.97/x
  3. Step 3: Cross multiply
    105,536.86x = 145,635.44 × 57,780.97
  4. Step 4: Simplify right side
    105,536.86x = 8,414,956,336.58
  5. Step 5: Solve for x
    x = 8,414,956,336.58/105,536.86
  6. Step 6: Final answer
    x = 79,734.76

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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.