Finding the Fourth Proportional to 138,615.08, 207,922.68 and 55,509.08
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Solution
The fourth proportional to 138,615.08, 207,922.68 and 55,509.08 is: 83,263.64
Step by Step Solution
- Step 1: Write the proportion equation
138,615.08 : 207,922.68 = 55,509.08 : x - Step 2: Convert to fraction form
138,615.08/207,922.68 = 55,509.08/x - Step 3: Cross multiply
138,615.08x = 207,922.68 × 55,509.08 - Step 4: Simplify right side
138,615.08x = 11,541,596,677.93 - Step 5: Solve for x
x = 11,541,596,677.93/138,615.08 - Step 6: Final answer
x = 83,263.64
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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.