Finding the Fourth Proportional to 112,594.05, 155,378.45 and 61,606.19
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Solution
The fourth proportional to 112,594.05, 155,378.45 and 61,606.19 is: 85,015.80
Step by Step Solution
- Step 1: Write the proportion equation
112,594.05 : 155,378.45 = 61,606.19 : x - Step 2: Convert to fraction form
112,594.05/155,378.45 = 61,606.19/x - Step 3: Cross multiply
112,594.05x = 155,378.45 × 61,606.19 - Step 4: Simplify right side
112,594.05x = 9,572,273,227.68 - Step 5: Solve for x
x = 9,572,273,227.68/112,594.05 - Step 6: Final answer
x = 85,015.80
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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.