Finding the Fourth Proportional to 153,787.84, 230,480.80 and 78,844.48
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Solution
The fourth proportional to 153,787.84, 230,480.80 and 78,844.48 is: 118,163.69
Step by Step Solution
- Step 1: Write the proportion equation
153,787.84 : 230,480.80 = 78,844.48 : x - Step 2: Convert to fraction form
153,787.84/230,480.80 = 78,844.48/x - Step 3: Cross multiply
153,787.84x = 230,480.80 × 78,844.48 - Step 4: Simplify right side
153,787.84x = 18,172,138,825.98 - Step 5: Solve for x
x = 18,172,138,825.98/153,787.84 - Step 6: Final answer
x = 118,163.69
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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.