Finding the Fourth Proportional to 156,816.80, 235,246.80 and 68,067.80
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Solution
The fourth proportional to 156,816.80, 235,246.80 and 68,067.80 is: 102,111.08
Step by Step Solution
- Step 1: Write the proportion equation
156,816.80 : 235,246.80 = 68,067.80 : x - Step 2: Convert to fraction form
156,816.80/235,246.80 = 68,067.80/x - Step 3: Cross multiply
156,816.80x = 235,246.80 × 68,067.80 - Step 4: Simplify right side
156,816.80x = 16,012,732,133.04 - Step 5: Solve for x
x = 16,012,732,133.04/156,816.80 - Step 6: Final answer
x = 102,111.08
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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.