Finding the Fourth Proportional to 75,119.68, 112,517.54 and 70,703.32
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Solution
The fourth proportional to 75,119.68, 112,517.54 and 70,703.32 is: 105,902.52
Step by Step Solution
- Step 1: Write the proportion equation
75,119.68 : 112,517.54 = 70,703.32 : x - Step 2: Convert to fraction form
75,119.68/112,517.54 = 70,703.32/x - Step 3: Cross multiply
75,119.68x = 112,517.54 × 70,703.32 - Step 4: Simplify right side
75,119.68x = 7,955,363,636.23 - Step 5: Solve for x
x = 7,955,363,636.23/75,119.68 - Step 6: Final answer
x = 105,902.52
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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.