Finding the Fourth Proportional to 117,623.80, 176,435.70 and 65,135.80
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Solution
The fourth proportional to 117,623.80, 176,435.70 and 65,135.80 is: 97,703.70
Step by Step Solution
- Step 1: Write the proportion equation
117,623.80 : 176,435.70 = 65,135.80 : x - Step 2: Convert to fraction form
117,623.80/176,435.70 = 65,135.80/x - Step 3: Cross multiply
117,623.80x = 176,435.70 × 65,135.80 - Step 4: Simplify right side
117,623.80x = 11,492,280,468.06 - Step 5: Solve for x
x = 11,492,280,468.06/117,623.80 - Step 6: Final answer
x = 97,703.70
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1.5x scale
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.