Finding the Fourth Proportional to 96,987.62, 145,348.72 and 73,275.68
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Solution
The fourth proportional to 96,987.62, 145,348.72 and 73,275.68 is: 109,813.26
Step by Step Solution
- Step 1: Write the proportion equation
96,987.62 : 145,348.72 = 73,275.68 : x - Step 2: Convert to fraction form
96,987.62/145,348.72 = 73,275.68/x - Step 3: Cross multiply
96,987.62x = 145,348.72 × 73,275.68 - Step 4: Simplify right side
96,987.62x = 10,650,526,295.13 - Step 5: Solve for x
x = 10,650,526,295.13/96,987.62 - Step 6: Final answer
x = 109,813.26
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.