Finding the Fourth Proportional to 163,487.80, 245,102.10 and 89,615.80
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Solution
The fourth proportional to 163,487.80, 245,102.10 and 89,615.80 is: 134,352.66
Step by Step Solution
- Step 1: Write the proportion equation
163,487.80 : 245,102.10 = 89,615.80 : x - Step 2: Convert to fraction form
163,487.80/245,102.10 = 89,615.80/x - Step 3: Cross multiply
163,487.80x = 245,102.10 × 89,615.80 - Step 4: Simplify right side
163,487.80x = 21,965,020,773.18 - Step 5: Solve for x
x = 21,965,020,773.18/163,487.80 - Step 6: Final answer
x = 134,352.66
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.