Home / 120,899.08-166,837.40-67,182.72

Finding the Fourth Proportional to 120,899.08, 166,837.40 and 67,182.72

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Solution

The fourth proportional to 120,899.08, 166,837.40 and 67,182.72 is: 92,710.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,899.08 : 166,837.40 = 67,182.72 : x
  2. Step 2: Convert to fraction form
    120,899.08/166,837.40 = 67,182.72/x
  3. Step 3: Cross multiply
    120,899.08x = 166,837.40 × 67,182.72
  4. Step 4: Simplify right side
    120,899.08x = 11,208,590,329.73
  5. Step 5: Solve for x
    x = 11,208,590,329.73/120,899.08
  6. Step 6: Final answer
    x = 92,710.30

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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.