Finding the Fourth Proportional to 159,316.14, 219,862.53 and 87,702.81
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Solution
The fourth proportional to 159,316.14, 219,862.53 and 87,702.81 is: 121,033.32
Step by Step Solution
- Step 1: Write the proportion equation
159,316.14 : 219,862.53 = 87,702.81 : x - Step 2: Convert to fraction form
159,316.14/219,862.53 = 87,702.81/x - Step 3: Cross multiply
159,316.14x = 219,862.53 × 87,702.81 - Step 4: Simplify right side
159,316.14x = 19,282,561,694.71 - Step 5: Solve for x
x = 19,282,561,694.71/159,316.14 - Step 6: Final answer
x = 121,033.32
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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.