Home / 120,888.54-166,818.86-67,171.72

Finding the Fourth Proportional to 120,888.54, 166,818.86 and 67,171.72

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Solution

The fourth proportional to 120,888.54, 166,818.86 and 67,171.72 is: 92,692.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,888.54 : 166,818.86 = 67,171.72 : x
  2. Step 2: Convert to fraction form
    120,888.54/166,818.86 = 67,171.72/x
  3. Step 3: Cross multiply
    120,888.54x = 166,818.86 × 67,171.72
  4. Step 4: Simplify right side
    120,888.54x = 11,205,509,566.41
  5. Step 5: Solve for x
    x = 11,205,509,566.41/120,888.54
  6. Step 6: Final answer
    x = 92,692.90

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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.