Finding the Fourth Proportional to 156,351.68, 215,839.68 and 104,757.62
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Solution
The fourth proportional to 156,351.68, 215,839.68 and 104,757.62 is: 144,615.34
Step by Step Solution
- Step 1: Write the proportion equation
156,351.68 : 215,839.68 = 104,757.62 : x - Step 2: Convert to fraction form
156,351.68/215,839.68 = 104,757.62/x - Step 3: Cross multiply
156,351.68x = 215,839.68 × 104,757.62 - Step 4: Simplify right side
156,351.68x = 22,610,851,178.36 - Step 5: Solve for x
x = 22,610,851,178.36/156,351.68 - Step 6: Final answer
x = 144,615.34
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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.