Finding the Fourth Proportional to 159,317.70, 219,856.71 and 87,696.19
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Solution
The fourth proportional to 159,317.70, 219,856.71 and 87,696.19 is: 121,019.80
Step by Step Solution
- Step 1: Write the proportion equation
159,317.70 : 219,856.71 = 87,696.19 : x - Step 2: Convert to fraction form
159,317.70/219,856.71 = 87,696.19/x - Step 3: Cross multiply
159,317.70x = 219,856.71 × 87,696.19 - Step 4: Simplify right side
159,317.70x = 19,280,595,812.93 - Step 5: Solve for x
x = 19,280,595,812.93/159,317.70 - Step 6: Final answer
x = 121,019.80
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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.