Finding the Fourth Proportional to 135,263.08, 186,651.30 and 74,832.76
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Solution
The fourth proportional to 135,263.08, 186,651.30 and 74,832.76 is: 103,262.71
Step by Step Solution
- Step 1: Write the proportion equation
135,263.08 : 186,651.30 = 74,832.76 : x - Step 2: Convert to fraction form
135,263.08/186,651.30 = 74,832.76/x - Step 3: Cross multiply
135,263.08x = 186,651.30 × 74,832.76 - Step 4: Simplify right side
135,263.08x = 13,967,631,936.59 - Step 5: Solve for x
x = 13,967,631,936.59/135,263.08 - Step 6: Final answer
x = 103,262.71
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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.