Finding the Fourth Proportional to 96,990.60, 145,252.26 and 65,731.08
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Solution
The fourth proportional to 96,990.60, 145,252.26 and 65,731.08 is: 98,438.28
Step by Step Solution
- Step 1: Write the proportion equation
96,990.60 : 145,252.26 = 65,731.08 : x - Step 2: Convert to fraction form
96,990.60/145,252.26 = 65,731.08/x - Step 3: Cross multiply
96,990.60x = 145,252.26 × 65,731.08 - Step 4: Simplify right side
96,990.60x = 9,547,587,922.24 - Step 5: Solve for x
x = 9,547,587,922.24/96,990.60 - Step 6: Final answer
x = 98,438.28
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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.