Finding the Fourth Proportional to 147,011.76, 202,876.11 and 79,943.76
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Solution
The fourth proportional to 147,011.76, 202,876.11 and 79,943.76 is: 110,322.32
Step by Step Solution
- Step 1: Write the proportion equation
147,011.76 : 202,876.11 = 79,943.76 : x - Step 2: Convert to fraction form
147,011.76/202,876.11 = 79,943.76/x - Step 3: Cross multiply
147,011.76x = 202,876.11 × 79,943.76 - Step 4: Simplify right side
147,011.76x = 16,218,679,047.57 - Step 5: Solve for x
x = 16,218,679,047.57/147,011.76 - Step 6: Final answer
x = 110,322.32
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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.