Home / 105,525.64-145,625.34-57,778.96

Finding the Fourth Proportional to 105,525.64, 145,625.34 and 57,778.96

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Solution

The fourth proportional to 105,525.64, 145,625.34 and 57,778.96 is: 79,734.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,525.64 : 145,625.34 = 57,778.96 : x
  2. Step 2: Convert to fraction form
    105,525.64/145,625.34 = 57,778.96/x
  3. Step 3: Cross multiply
    105,525.64x = 145,625.34 × 57,778.96
  4. Step 4: Simplify right side
    105,525.64x = 8,414,080,694.85
  5. Step 5: Solve for x
    x = 8,414,080,694.85/105,525.64
  6. Step 6: Final answer
    x = 79,734.94

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1.5x scale

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.