Finding the Fourth Proportional to 139,024.35, 191,854.97 and 75,361.99
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Solution
The fourth proportional to 139,024.35, 191,854.97 and 75,361.99 is: 104,000.29
Step by Step Solution
- Step 1: Write the proportion equation
139,024.35 : 191,854.97 = 75,361.99 : x - Step 2: Convert to fraction form
139,024.35/191,854.97 = 75,361.99/x - Step 3: Cross multiply
139,024.35x = 191,854.97 × 75,361.99 - Step 4: Simplify right side
139,024.35x = 14,458,572,330.59 - Step 5: Solve for x
x = 14,458,572,330.59/139,024.35 - Step 6: Final answer
x = 104,000.29
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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.