Finding the Fourth Proportional to 92,722.90, 138,304.85 and 84,208.99
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Solution
The fourth proportional to 92,722.90, 138,304.85 and 84,208.99 is: 125,605.56
Step by Step Solution
- Step 1: Write the proportion equation
92,722.90 : 138,304.85 = 84,208.99 : x - Step 2: Convert to fraction form
92,722.90/138,304.85 = 84,208.99/x - Step 3: Cross multiply
92,722.90x = 138,304.85 × 84,208.99 - Step 4: Simplify right side
92,722.90x = 11,646,511,730.60 - Step 5: Solve for x
x = 11,646,511,730.60/92,722.90 - Step 6: Final answer
x = 125,605.56
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.