Finding the Fourth Proportional to 97,472.96, 145,876.77 and 81,695.80
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Solution
The fourth proportional to 97,472.96, 145,876.77 and 81,695.80 is: 122,264.88
Step by Step Solution
- Step 1: Write the proportion equation
97,472.96 : 145,876.77 = 81,695.80 : x - Step 2: Convert to fraction form
97,472.96/145,876.77 = 81,695.80/x - Step 3: Cross multiply
97,472.96x = 145,876.77 × 81,695.80 - Step 4: Simplify right side
97,472.96x = 11,917,519,426.57 - Step 5: Solve for x
x = 11,917,519,426.57/97,472.96 - Step 6: Final answer
x = 122,264.88
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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.