Finding the Fourth Proportional to 149,420.30, 206,207.30 and 84,029.70
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Solution
The fourth proportional to 149,420.30, 206,207.30 and 84,029.70 is: 115,965.08
Step by Step Solution
- Step 1: Write the proportion equation
149,420.30 : 206,207.30 = 84,029.70 : x - Step 2: Convert to fraction form
149,420.30/206,207.30 = 84,029.70/x - Step 3: Cross multiply
149,420.30x = 206,207.30 × 84,029.70 - Step 4: Simplify right side
149,420.30x = 17,327,537,136.66 - Step 5: Solve for x
x = 17,327,537,136.66/149,420.30 - Step 6: Final answer
x = 115,965.08
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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.