Finding the Fourth Proportional to 158,258.96, 218,402.52 and 86,638.96
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Solution
The fourth proportional to 158,258.96, 218,402.52 and 86,638.96 is: 119,564.59
Step by Step Solution
- Step 1: Write the proportion equation
158,258.96 : 218,402.52 = 86,638.96 : x - Step 2: Convert to fraction form
158,258.96/218,402.52 = 86,638.96/x - Step 3: Cross multiply
158,258.96x = 218,402.52 × 86,638.96 - Step 4: Simplify right side
158,258.96x = 18,922,167,194.18 - Step 5: Solve for x
x = 18,922,167,194.18/158,258.96 - Step 6: Final answer
x = 119,564.59
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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.