Finding the Fourth Proportional to 98,447.19, 147,685.28 and 31,865.19
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Solution
The fourth proportional to 98,447.19, 147,685.28 and 31,865.19 is: 47,802.48
Step by Step Solution
- Step 1: Write the proportion equation
98,447.19 : 147,685.28 = 31,865.19 : x - Step 2: Convert to fraction form
98,447.19/147,685.28 = 31,865.19/x - Step 3: Cross multiply
98,447.19x = 147,685.28 × 31,865.19 - Step 4: Simplify right side
98,447.19x = 4,706,019,348.08 - Step 5: Solve for x
x = 4,706,019,348.08/98,447.19 - Step 6: Final answer
x = 47,802.48
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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.