Finding the Fourth Proportional to 187,507.80, 258,729.66 and 106,941.18
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Solution
The fourth proportional to 187,507.80, 258,729.66 and 106,941.18 is: 147,561.09
Step by Step Solution
- Step 1: Write the proportion equation
187,507.80 : 258,729.66 = 106,941.18 : x - Step 2: Convert to fraction form
187,507.80/258,729.66 = 106,941.18/x - Step 3: Cross multiply
187,507.80x = 258,729.66 × 106,941.18 - Step 4: Simplify right side
187,507.80x = 27,668,855,141.40 - Step 5: Solve for x
x = 27,668,855,141.40/187,507.80 - Step 6: Final answer
x = 147,561.09
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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.