Finding the Fourth Proportional to 140,140.26, 193,397.64 and 76,482.18
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Solution
The fourth proportional to 140,140.26, 193,397.64 and 76,482.18 is: 105,547.64
Step by Step Solution
- Step 1: Write the proportion equation
140,140.26 : 193,397.64 = 76,482.18 : x - Step 2: Convert to fraction form
140,140.26/193,397.64 = 76,482.18/x - Step 3: Cross multiply
140,140.26x = 193,397.64 × 76,482.18 - Step 4: Simplify right side
140,140.26x = 14,791,473,114.06 - Step 5: Solve for x
x = 14,791,473,114.06/140,140.26 - Step 6: Final answer
x = 105,547.64
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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.