Finding the Fourth Proportional to 147,282.31, 203,257.47 and 86,888.26
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Solution
The fourth proportional to 147,282.31, 203,257.47 and 86,888.26 is: 119,910.45
Step by Step Solution
- Step 1: Write the proportion equation
147,282.31 : 203,257.47 = 86,888.26 : x - Step 2: Convert to fraction form
147,282.31/203,257.47 = 86,888.26/x - Step 3: Cross multiply
147,282.31x = 203,257.47 × 86,888.26 - Step 4: Simplify right side
147,282.31x = 17,660,687,900.30 - Step 5: Solve for x
x = 17,660,687,900.30/147,282.31 - Step 6: Final answer
x = 119,910.45
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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.