Finding the Fourth Proportional to 139,290.08, 192,220.56 and 75,627.68
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Solution
The fourth proportional to 139,290.08, 192,220.56 and 75,627.68 is: 104,366.33
Step by Step Solution
- Step 1: Write the proportion equation
139,290.08 : 192,220.56 = 75,627.68 : x - Step 2: Convert to fraction form
139,290.08/192,220.56 = 75,627.68/x - Step 3: Cross multiply
139,290.08x = 192,220.56 × 75,627.68 - Step 4: Simplify right side
139,290.08x = 14,537,195,001.10 - Step 5: Solve for x
x = 14,537,195,001.10/139,290.08 - Step 6: Final answer
x = 104,366.33
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1.5x scale
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.