Finding the Fourth Proportional to 97,501.60, 134,614.74 and 79,639.48
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Solution
The fourth proportional to 97,501.60, 134,614.74 and 79,639.48 is: 109,953.56
Step by Step Solution
- Step 1: Write the proportion equation
97,501.60 : 134,614.74 = 79,639.48 : x - Step 2: Convert to fraction form
97,501.60/134,614.74 = 79,639.48/x - Step 3: Cross multiply
97,501.60x = 134,614.74 × 79,639.48 - Step 4: Simplify right side
97,501.60x = 10,720,647,893.94 - Step 5: Solve for x
x = 10,720,647,893.94/97,501.60 - Step 6: Final answer
x = 109,953.56
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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.