Finding the Fourth Proportional to 147,332.68, 203,343.75 and 86,918.31
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Solution
The fourth proportional to 147,332.68, 203,343.75 and 86,918.31 is: 119,961.81
Step by Step Solution
- Step 1: Write the proportion equation
147,332.68 : 203,343.75 = 86,918.31 : x - Step 2: Convert to fraction form
147,332.68/203,343.75 = 86,918.31/x - Step 3: Cross multiply
147,332.68x = 203,343.75 × 86,918.31 - Step 4: Simplify right side
147,332.68x = 17,674,295,099.06 - Step 5: Solve for x
x = 17,674,295,099.06/147,332.68 - Step 6: Final answer
x = 119,961.81
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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.