Finding the Fourth Proportional to 158,495.50, 218,720.35 and 86,873.99
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Solution
The fourth proportional to 158,495.50, 218,720.35 and 86,873.99 is: 119,884.21
Step by Step Solution
- Step 1: Write the proportion equation
158,495.50 : 218,720.35 = 86,873.99 : x - Step 2: Convert to fraction form
158,495.50/218,720.35 = 86,873.99/x - Step 3: Cross multiply
158,495.50x = 218,720.35 × 86,873.99 - Step 4: Simplify right side
158,495.50x = 19,001,108,513.69 - Step 5: Solve for x
x = 19,001,108,513.69/158,495.50 - Step 6: Final answer
x = 119,884.21
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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.