Finding the Fourth Proportional to 183,988.53, 253,911.36 and 103,415.81
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Solution
The fourth proportional to 183,988.53, 253,911.36 and 103,415.81 is: 142,717.85
Step by Step Solution
- Step 1: Write the proportion equation
183,988.53 : 253,911.36 = 103,415.81 : x - Step 2: Convert to fraction form
183,988.53/253,911.36 = 103,415.81/x - Step 3: Cross multiply
183,988.53x = 253,911.36 × 103,415.81 - Step 4: Simplify right side
183,988.53x = 26,258,447,693.04 - Step 5: Solve for x
x = 26,258,447,693.04/183,988.53 - Step 6: Final answer
x = 142,717.85
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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.