Finding the Fourth Proportional to 174,688.12, 261,812.94 and 74,730.84
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Solution
The fourth proportional to 174,688.12, 261,812.94 and 74,730.84 is: 112,002.47
Step by Step Solution
- Step 1: Write the proportion equation
174,688.12 : 261,812.94 = 74,730.84 : x - Step 2: Convert to fraction form
174,688.12/261,812.94 = 74,730.84/x - Step 3: Cross multiply
174,688.12x = 261,812.94 × 74,730.84 - Step 4: Simplify right side
174,688.12x = 19,565,500,929.07 - Step 5: Solve for x
x = 19,565,500,929.07/174,688.12 - Step 6: Final answer
x = 112,002.47
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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.