Finding the Fourth Proportional to 97,217.76, 133,865.28 and 80,158.08
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Solution
The fourth proportional to 97,217.76, 133,865.28 and 80,158.08 is: 110,374.73
Step by Step Solution
- Step 1: Write the proportion equation
97,217.76 : 133,865.28 = 80,158.08 : x - Step 2: Convert to fraction form
97,217.76/133,865.28 = 80,158.08/x - Step 3: Cross multiply
97,217.76x = 133,865.28 × 80,158.08 - Step 4: Simplify right side
97,217.76x = 10,730,383,823.46 - Step 5: Solve for x
x = 10,730,383,823.46/97,217.76 - Step 6: Final answer
x = 110,374.73
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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.