Home / 121,692.62-167,935.10-67,977.47

Finding the Fourth Proportional to 121,692.62, 167,935.10 and 67,977.47

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Solution

The fourth proportional to 121,692.62, 167,935.10 and 67,977.47 is: 93,808.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,692.62 : 167,935.10 = 67,977.47 : x
  2. Step 2: Convert to fraction form
    121,692.62/167,935.10 = 67,977.47/x
  3. Step 3: Cross multiply
    121,692.62x = 167,935.10 × 67,977.47
  4. Step 4: Simplify right side
    121,692.62x = 11,415,803,222.20
  5. Step 5: Solve for x
    x = 11,415,803,222.20/121,692.62
  6. Step 6: Final answer
    x = 93,808.51

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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.