Finding the Fourth Proportional to 159,109.71, 219,516.76 and 98,658.60
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Solution
The fourth proportional to 159,109.71, 219,516.76 and 98,658.60 is: 136,114.99
Step by Step Solution
- Step 1: Write the proportion equation
159,109.71 : 219,516.76 = 98,658.60 : x - Step 2: Convert to fraction form
159,109.71/219,516.76 = 98,658.60/x - Step 3: Cross multiply
159,109.71x = 219,516.76 × 98,658.60 - Step 4: Simplify right side
159,109.71x = 21,657,216,218.14 - Step 5: Solve for x
x = 21,657,216,218.14/159,109.71 - Step 6: Final answer
x = 136,114.99
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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.