Finding the Fourth Proportional to 102,014.20, 153,009.12 and 27,139.84
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Solution
The fourth proportional to 102,014.20, 153,009.12 and 27,139.84 is: 40,706.52
Step by Step Solution
- Step 1: Write the proportion equation
102,014.20 : 153,009.12 = 27,139.84 : x - Step 2: Convert to fraction form
102,014.20/153,009.12 = 27,139.84/x - Step 3: Cross multiply
102,014.20x = 153,009.12 × 27,139.84 - Step 4: Simplify right side
102,014.20x = 4,152,643,035.34 - Step 5: Solve for x
x = 4,152,643,035.34/102,014.20 - Step 6: Final answer
x = 40,706.52
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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.