Home / 120,897.40-166,828.86-67,181.56

Finding the Fourth Proportional to 120,897.40, 166,828.86 and 67,181.56

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Solution

The fourth proportional to 120,897.40, 166,828.86 and 67,181.56 is: 92,705.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,897.40 : 166,828.86 = 67,181.56 : x
  2. Step 2: Convert to fraction form
    120,897.40/166,828.86 = 67,181.56/x
  3. Step 3: Cross multiply
    120,897.40x = 166,828.86 × 67,181.56
  4. Step 4: Simplify right side
    120,897.40x = 11,207,823,067.82
  5. Step 5: Solve for x
    x = 11,207,823,067.82/120,897.40
  6. Step 6: Final answer
    x = 92,705.24

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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.