Finding the Fourth Proportional to 117,006.70, 175,510.05 and 97,979.80
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Solution
The fourth proportional to 117,006.70, 175,510.05 and 97,979.80 is: 146,969.70
Step by Step Solution
- Step 1: Write the proportion equation
117,006.70 : 175,510.05 = 97,979.80 : x - Step 2: Convert to fraction form
117,006.70/175,510.05 = 97,979.80/x - Step 3: Cross multiply
117,006.70x = 175,510.05 × 97,979.80 - Step 4: Simplify right side
117,006.70x = 17,196,439,596.99 - Step 5: Solve for x
x = 17,196,439,596.99/117,006.70 - Step 6: Final answer
x = 146,969.70
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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.