Home / 120,848.94-181,098.36-68,146.38

Finding the Fourth Proportional to 120,848.94, 181,098.36 and 68,146.38

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Solution

The fourth proportional to 120,848.94, 181,098.36 and 68,146.38 is: 102,120.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,848.94 : 181,098.36 = 68,146.38 : x
  2. Step 2: Convert to fraction form
    120,848.94/181,098.36 = 68,146.38/x
  3. Step 3: Cross multiply
    120,848.94x = 181,098.36 × 68,146.38
  4. Step 4: Simplify right side
    120,848.94x = 12,341,197,657.94
  5. Step 5: Solve for x
    x = 12,341,197,657.94/120,848.94
  6. Step 6: Final answer
    x = 102,120.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.