Finding the Fourth Proportional to 163,656.18, 225,876.58 and 102,430.80
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Solution
The fourth proportional to 163,656.18, 225,876.58 and 102,430.80 is: 141,373.94
Step by Step Solution
- Step 1: Write the proportion equation
163,656.18 : 225,876.58 = 102,430.80 : x - Step 2: Convert to fraction form
163,656.18/225,876.58 = 102,430.80/x - Step 3: Cross multiply
163,656.18x = 225,876.58 × 102,430.80 - Step 4: Simplify right side
163,656.18x = 23,136,718,790.66 - Step 5: Solve for x
x = 23,136,718,790.66/163,656.18 - Step 6: Final answer
x = 141,373.94
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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.