Finding the Fourth Proportional to 112,511.23, 155,381.70 and 97,331.02
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Solution
The fourth proportional to 112,511.23, 155,381.70 and 97,331.02 is: 134,417.33
Step by Step Solution
- Step 1: Write the proportion equation
112,511.23 : 155,381.70 = 97,331.02 : x - Step 2: Convert to fraction form
112,511.23/155,381.70 = 97,331.02/x - Step 3: Cross multiply
112,511.23x = 155,381.70 × 97,331.02 - Step 4: Simplify right side
112,511.23x = 15,123,459,350.33 - Step 5: Solve for x
x = 15,123,459,350.33/112,511.23 - Step 6: Final answer
x = 134,417.33
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1.5x scale
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.