Finding the Fourth Proportional to 107,943.14, 148,910.72 and 70,203.62
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Solution
The fourth proportional to 107,943.14, 148,910.72 and 70,203.62 is: 96,847.95
Step by Step Solution
- Step 1: Write the proportion equation
107,943.14 : 148,910.72 = 70,203.62 : x - Step 2: Convert to fraction form
107,943.14/148,910.72 = 70,203.62/x - Step 3: Cross multiply
107,943.14x = 148,910.72 × 70,203.62 - Step 4: Simplify right side
107,943.14x = 10,454,071,600.81 - Step 5: Solve for x
x = 10,454,071,600.81/107,943.14 - Step 6: Final answer
x = 96,847.95
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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.