Finding the Fourth Proportional to 183,389.81, 253,078.63 and 106,961.68
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Solution
The fourth proportional to 183,389.81, 253,078.63 and 106,961.68 is: 147,607.52
Step by Step Solution
- Step 1: Write the proportion equation
183,389.81 : 253,078.63 = 106,961.68 : x - Step 2: Convert to fraction form
183,389.81/253,078.63 = 106,961.68/x - Step 3: Cross multiply
183,389.81x = 253,078.63 × 106,961.68 - Step 4: Simplify right side
183,389.81x = 27,069,714,536.80 - Step 5: Solve for x
x = 27,069,714,536.80/183,389.81 - Step 6: Final answer
x = 147,607.52
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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.