Finding the Fourth Proportional to 97,798.99, 134,953.27 and 77,704.51
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Solution
The fourth proportional to 97,798.99, 134,953.27 and 77,704.51 is: 107,224.81
Step by Step Solution
- Step 1: Write the proportion equation
97,798.99 : 134,953.27 = 77,704.51 : x - Step 2: Convert to fraction form
97,798.99/134,953.27 = 77,704.51/x - Step 3: Cross multiply
97,798.99x = 134,953.27 × 77,704.51 - Step 4: Simplify right side
97,798.99x = 10,486,477,718.25 - Step 5: Solve for x
x = 10,486,477,718.25/97,798.99 - Step 6: Final answer
x = 107,224.81
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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.