Finding the Fourth Proportional to 107,706.69, 148,641.12 and 59,958.99
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Solution
The fourth proportional to 107,706.69, 148,641.12 and 59,958.99 is: 82,746.68
Step by Step Solution
- Step 1: Write the proportion equation
107,706.69 : 148,641.12 = 59,958.99 : x - Step 2: Convert to fraction form
107,706.69/148,641.12 = 59,958.99/x - Step 3: Cross multiply
107,706.69x = 148,641.12 × 59,958.99 - Step 4: Simplify right side
107,706.69x = 8,912,371,427.67 - Step 5: Solve for x
x = 8,912,371,427.67/107,706.69 - Step 6: Final answer
x = 82,746.68
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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.