Finding the Fourth Proportional to 153,327.19, 211,591.53 and 85,342.71
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Solution
The fourth proportional to 153,327.19, 211,591.53 and 85,342.71 is: 117,772.94
Step by Step Solution
- Step 1: Write the proportion equation
153,327.19 : 211,591.53 = 85,342.71 : x - Step 2: Convert to fraction form
153,327.19/211,591.53 = 85,342.71/x - Step 3: Cross multiply
153,327.19x = 211,591.53 × 85,342.71 - Step 4: Simplify right side
153,327.19x = 18,057,793,591.41 - Step 5: Solve for x
x = 18,057,793,591.41/153,327.19 - Step 6: Final answer
x = 117,772.94
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.