Finding the Fourth Proportional to 153,058.74, 211,219.68 and 85,073.97
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Solution
The fourth proportional to 153,058.74, 211,219.68 and 85,073.97 is: 117,401.31
Step by Step Solution
- Step 1: Write the proportion equation
153,058.74 : 211,219.68 = 85,073.97 : x - Step 2: Convert to fraction form
153,058.74/211,219.68 = 85,073.97/x - Step 3: Cross multiply
153,058.74x = 211,219.68 × 85,073.97 - Step 4: Simplify right side
153,058.74x = 17,969,296,719.73 - Step 5: Solve for x
x = 17,969,296,719.73/153,058.74 - Step 6: Final answer
x = 117,401.31
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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.