Home / 212,331.09-293,017.90-121,692.41

Finding the Fourth Proportional to 212,331.09, 293,017.90 and 121,692.41

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Solution

The fourth proportional to 212,331.09, 293,017.90 and 121,692.41 is: 167,936.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,331.09 : 293,017.90 = 121,692.41 : x
  2. Step 2: Convert to fraction form
    212,331.09/293,017.90 = 121,692.41/x
  3. Step 3: Cross multiply
    212,331.09x = 293,017.90 × 121,692.41
  4. Step 4: Simplify right side
    212,331.09x = 35,658,054,424.14
  5. Step 5: Solve for x
    x = 35,658,054,424.14/212,331.09
  6. Step 6: Final answer
    x = 167,936.10

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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.