Finding the Fourth Proportional to 158,536.17, 218,778.75 and 86,914.95
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Solution
The fourth proportional to 158,536.17, 218,778.75 and 86,914.95 is: 119,941.99
Step by Step Solution
- Step 1: Write the proportion equation
158,536.17 : 218,778.75 = 86,914.95 : x - Step 2: Convert to fraction form
158,536.17/218,778.75 = 86,914.95/x - Step 3: Cross multiply
158,536.17x = 218,778.75 × 86,914.95 - Step 4: Simplify right side
158,536.17x = 19,015,144,117.31 - Step 5: Solve for x
x = 19,015,144,117.31/158,536.17 - Step 6: Final answer
x = 119,941.99
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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.