Home / 120,836.40-181,254.60-114,712.80

Finding the Fourth Proportional to 120,836.40, 181,254.60 and 114,712.80

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Solution

The fourth proportional to 120,836.40, 181,254.60 and 114,712.80 is: 172,069.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,836.40 : 181,254.60 = 114,712.80 : x
  2. Step 2: Convert to fraction form
    120,836.40/181,254.60 = 114,712.80/x
  3. Step 3: Cross multiply
    120,836.40x = 181,254.60 × 114,712.80
  4. Step 4: Simplify right side
    120,836.40x = 20,792,222,678.88
  5. Step 5: Solve for x
    x = 20,792,222,678.88/120,836.40
  6. Step 6: Final answer
    x = 172,069.20

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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.