Finding the Fourth Proportional to 87,201.62, 130,769.58 and 68,699.60
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Solution
The fourth proportional to 87,201.62, 130,769.58 and 68,699.60 is: 103,023.52
Step by Step Solution
- Step 1: Write the proportion equation
87,201.62 : 130,769.58 = 68,699.60 : x - Step 2: Convert to fraction form
87,201.62/130,769.58 = 68,699.60/x - Step 3: Cross multiply
87,201.62x = 130,769.58 × 68,699.60 - Step 4: Simplify right side
87,201.62x = 8,983,817,838.17 - Step 5: Solve for x
x = 8,983,817,838.17/87,201.62 - Step 6: Final answer
x = 103,023.52
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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.