Finding the Fourth Proportional to 158,377.47, 218,561.54 and 86,757.99
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Solution
The fourth proportional to 158,377.47, 218,561.54 and 86,757.99 is: 119,726.37
Step by Step Solution
- Step 1: Write the proportion equation
158,377.47 : 218,561.54 = 86,757.99 : x - Step 2: Convert to fraction form
158,377.47/218,561.54 = 86,757.99/x - Step 3: Cross multiply
158,377.47x = 218,561.54 × 86,757.99 - Step 4: Simplify right side
158,377.47x = 18,961,959,901.70 - Step 5: Solve for x
x = 18,961,959,901.70/158,377.47 - Step 6: Final answer
x = 119,726.37
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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.