Home / 126,605.96-189,934.50-56,485.28

Finding the Fourth Proportional to 126,605.96, 189,934.50 and 56,485.28

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Solution

The fourth proportional to 126,605.96, 189,934.50 and 56,485.28 is: 84,739.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,605.96 : 189,934.50 = 56,485.28 : x
  2. Step 2: Convert to fraction form
    126,605.96/189,934.50 = 56,485.28/x
  3. Step 3: Cross multiply
    126,605.96x = 189,934.50 × 56,485.28
  4. Step 4: Simplify right side
    126,605.96x = 10,728,503,414.16
  5. Step 5: Solve for x
    x = 10,728,503,414.16/126,605.96
  6. Step 6: Final answer
    x = 84,739.32

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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.