Home / 120,842.40-181,263.60-114,718.80

Finding the Fourth Proportional to 120,842.40, 181,263.60 and 114,718.80

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Solution

The fourth proportional to 120,842.40, 181,263.60 and 114,718.80 is: 172,078.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,842.40 : 181,263.60 = 114,718.80 : x
  2. Step 2: Convert to fraction form
    120,842.40/181,263.60 = 114,718.80/x
  3. Step 3: Cross multiply
    120,842.40x = 181,263.60 × 114,718.80
  4. Step 4: Simplify right side
    120,842.40x = 20,794,342,675.68
  5. Step 5: Solve for x
    x = 20,794,342,675.68/120,842.40
  6. Step 6: Final answer
    x = 172,078.20

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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.