Finding the Fourth Proportional to 168,377.60, 232,391.19 and 100,398.95
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Solution
The fourth proportional to 168,377.60, 232,391.19 and 100,398.95 is: 138,568.50
Step by Step Solution
- Step 1: Write the proportion equation
168,377.60 : 232,391.19 = 100,398.95 : x - Step 2: Convert to fraction form
168,377.60/232,391.19 = 100,398.95/x - Step 3: Cross multiply
168,377.60x = 232,391.19 × 100,398.95 - Step 4: Simplify right side
168,377.60x = 23,331,831,465.25 - Step 5: Solve for x
x = 23,331,831,465.25/168,377.60 - Step 6: Final answer
x = 138,568.50
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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.