Finding the Fourth Proportional to 122,113.84, 183,159.42 and 47,188.84
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Solution
The fourth proportional to 122,113.84, 183,159.42 and 47,188.84 is: 70,778.88
Step by Step Solution
- Step 1: Write the proportion equation
122,113.84 : 183,159.42 = 47,188.84 : x - Step 2: Convert to fraction form
122,113.84/183,159.42 = 47,188.84/x - Step 3: Cross multiply
122,113.84x = 183,159.42 × 47,188.84 - Step 4: Simplify right side
122,113.84x = 8,643,080,564.87 - Step 5: Solve for x
x = 8,643,080,564.87/122,113.84 - Step 6: Final answer
x = 70,778.88
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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.