Finding the Fourth Proportional to 112,927.49, 155,836.01 and 62,631.17
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Solution
The fourth proportional to 112,927.49, 155,836.01 and 62,631.17 is: 86,428.84
Step by Step Solution
- Step 1: Write the proportion equation
112,927.49 : 155,836.01 = 62,631.17 : x - Step 2: Convert to fraction form
112,927.49/155,836.01 = 62,631.17/x - Step 3: Cross multiply
112,927.49x = 155,836.01 × 62,631.17 - Step 4: Simplify right side
112,927.49x = 9,760,191,011.83 - Step 5: Solve for x
x = 9,760,191,011.83/112,927.49 - Step 6: Final answer
x = 86,428.84
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1.5x scale
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.