Finding the Fourth Proportional to 138,756.29, 191,483.68 and 75,094.07
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Solution
The fourth proportional to 138,756.29, 191,483.68 and 75,094.07 is: 103,629.82
Step by Step Solution
- Step 1: Write the proportion equation
138,756.29 : 191,483.68 = 75,094.07 : x - Step 2: Convert to fraction form
138,756.29/191,483.68 = 75,094.07/x - Step 3: Cross multiply
138,756.29x = 191,483.68 × 75,094.07 - Step 4: Simplify right side
138,756.29x = 14,379,288,869.78 - Step 5: Solve for x
x = 14,379,288,869.78/138,756.29 - Step 6: Final answer
x = 103,629.82
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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.