Finding the Fourth Proportional to 187,213.13, 258,323.95 and 106,642.23
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Solution
The fourth proportional to 187,213.13, 258,323.95 and 106,642.23 is: 147,149.09
Step by Step Solution
- Step 1: Write the proportion equation
187,213.13 : 258,323.95 = 106,642.23 : x - Step 2: Convert to fraction form
187,213.13/258,323.95 = 106,642.23/x - Step 3: Cross multiply
187,213.13x = 258,323.95 × 106,642.23 - Step 4: Simplify right side
187,213.13x = 27,548,242,090.41 - Step 5: Solve for x
x = 27,548,242,090.41/187,213.13 - Step 6: Final answer
x = 147,149.09
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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.