Home / 126,390.42-174,427.97-72,692.28

Finding the Fourth Proportional to 126,390.42, 174,427.97 and 72,692.28

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Solution

The fourth proportional to 126,390.42, 174,427.97 and 72,692.28 is: 100,320.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,390.42 : 174,427.97 = 72,692.28 : x
  2. Step 2: Convert to fraction form
    126,390.42/174,427.97 = 72,692.28/x
  3. Step 3: Cross multiply
    126,390.42x = 174,427.97 × 72,692.28
  4. Step 4: Simplify right side
    126,390.42x = 12,679,566,471.61
  5. Step 5: Solve for x
    x = 12,679,566,471.61/126,390.42
  6. Step 6: Final answer
    x = 100,320.63

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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.