Finding the Fourth Proportional to 134,545.50, 185,672.84 and 77,989.68
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Solution
The fourth proportional to 134,545.50, 185,672.84 and 77,989.68 is: 107,625.79
Step by Step Solution
- Step 1: Write the proportion equation
134,545.50 : 185,672.84 = 77,989.68 : x - Step 2: Convert to fraction form
134,545.50/185,672.84 = 77,989.68/x - Step 3: Cross multiply
134,545.50x = 185,672.84 × 77,989.68 - Step 4: Simplify right side
134,545.50x = 14,480,565,376.29 - Step 5: Solve for x
x = 14,480,565,376.29/134,545.50 - Step 6: Final answer
x = 107,625.79
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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.