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Finding the Fourth Proportional to 121,338.77, 167,452.34 and 67,623.30

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Solution

The fourth proportional to 121,338.77, 167,452.34 and 67,623.30 is: 93,322.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,338.77 : 167,452.34 = 67,623.30 : x
  2. Step 2: Convert to fraction form
    121,338.77/167,452.34 = 67,623.30/x
  3. Step 3: Cross multiply
    121,338.77x = 167,452.34 × 67,623.30
  4. Step 4: Simplify right side
    121,338.77x = 11,323,679,485.41
  5. Step 5: Solve for x
    x = 11,323,679,485.41/121,338.77
  6. Step 6: Final answer
    x = 93,322.85

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1.5x scale

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.