Finding the Fourth Proportional to 97,603.68, 134,653.08 and 65,782.80
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Solution
The fourth proportional to 97,603.68, 134,653.08 and 65,782.80 is: 90,753.31
Step by Step Solution
- Step 1: Write the proportion equation
97,603.68 : 134,653.08 = 65,782.80 : x - Step 2: Convert to fraction form
97,603.68/134,653.08 = 65,782.80/x - Step 3: Cross multiply
97,603.68x = 134,653.08 × 65,782.80 - Step 4: Simplify right side
97,603.68x = 8,857,856,631.02 - Step 5: Solve for x
x = 8,857,856,631.02/97,603.68 - Step 6: Final answer
x = 90,753.31
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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.