Finding the Fourth Proportional to 155,493.90, 214,647.79 and 104,536.19
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Solution
The fourth proportional to 155,493.90, 214,647.79 and 104,536.19 is: 144,304.45
Step by Step Solution
- Step 1: Write the proportion equation
155,493.90 : 214,647.79 = 104,536.19 : x - Step 2: Convert to fraction form
155,493.90/214,647.79 = 104,536.19/x - Step 3: Cross multiply
155,493.90x = 214,647.79 × 104,536.19 - Step 4: Simplify right side
155,493.90x = 22,438,461,085.28 - Step 5: Solve for x
x = 22,438,461,085.28/155,493.90 - Step 6: Final answer
x = 144,304.45
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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.