Finding the Fourth Proportional to 168,398.06, 232,418.77 and 100,419.08
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Solution
The fourth proportional to 168,398.06, 232,418.77 and 100,419.08 is: 138,595.89
Step by Step Solution
- Step 1: Write the proportion equation
168,398.06 : 232,418.77 = 100,419.08 : x - Step 2: Convert to fraction form
168,398.06/232,418.77 = 100,419.08/x - Step 3: Cross multiply
168,398.06x = 232,418.77 × 100,419.08 - Step 4: Simplify right side
168,398.06x = 23,339,277,644.99 - Step 5: Solve for x
x = 23,339,277,644.99/168,398.06 - Step 6: Final answer
x = 138,595.89
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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.