Home / 156,633.80-234,432.30-121,382.60

Finding the Fourth Proportional to 156,633.80, 234,432.30 and 121,382.60

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Solution

The fourth proportional to 156,633.80, 234,432.30 and 121,382.60 is: 181,672.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,633.80 : 234,432.30 = 121,382.60 : x
  2. Step 2: Convert to fraction form
    156,633.80/234,432.30 = 121,382.60/x
  3. Step 3: Cross multiply
    156,633.80x = 234,432.30 × 121,382.60
  4. Step 4: Simplify right side
    156,633.80x = 28,456,002,097.98
  5. Step 5: Solve for x
    x = 28,456,002,097.98/156,633.80
  6. Step 6: Final answer
    x = 181,672.17

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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.