Home / 105,574.22-145,692.20-57,176

Finding the Fourth Proportional to 105,574.22, 145,692.20 and 57,176

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Solution

The fourth proportional to 105,574.22, 145,692.20 and 57,176 is: 78,902.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,574.22 : 145,692.20 = 57,176 : x
  2. Step 2: Convert to fraction form
    105,574.22/145,692.20 = 57,176/x
  3. Step 3: Cross multiply
    105,574.22x = 145,692.20 × 57,176
  4. Step 4: Simplify right side
    105,574.22x = 8,330,097,227.20
  5. Step 5: Solve for x
    x = 8,330,097,227.20/105,574.22
  6. Step 6: Final answer
    x = 78,902.76

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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.