Finding the Fourth Proportional to 135,733.41, 187,555.91 and 105,597.09
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Solution
The fourth proportional to 135,733.41, 187,555.91 and 105,597.09 is: 145,913.65
Step by Step Solution
- Step 1: Write the proportion equation
135,733.41 : 187,555.91 = 105,597.09 : x - Step 2: Convert to fraction form
135,733.41/187,555.91 = 105,597.09/x - Step 3: Cross multiply
135,733.41x = 187,555.91 × 105,597.09 - Step 4: Simplify right side
135,733.41x = 19,805,357,780.32 - Step 5: Solve for x
x = 19,805,357,780.32/135,733.41 - Step 6: Final answer
x = 145,913.65
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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.