Finding the Fourth Proportional to 158,916.24, 219,400.74 and 105,247.26
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Solution
The fourth proportional to 158,916.24, 219,400.74 and 105,247.26 is: 145,305.02
Step by Step Solution
- Step 1: Write the proportion equation
158,916.24 : 219,400.74 = 105,247.26 : x - Step 2: Convert to fraction form
158,916.24/219,400.74 = 105,247.26/x - Step 3: Cross multiply
158,916.24x = 219,400.74 × 105,247.26 - Step 4: Simplify right side
158,916.24x = 23,091,326,726.97 - Step 5: Solve for x
x = 23,091,326,726.97/158,916.24 - Step 6: Final answer
x = 145,305.02
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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.