Finding the Fourth Proportional to 103,795.59, 143,088.62 and 73,935.75
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Solution
The fourth proportional to 103,795.59, 143,088.62 and 73,935.75 is: 101,924.99
Step by Step Solution
- Step 1: Write the proportion equation
103,795.59 : 143,088.62 = 73,935.75 : x - Step 2: Convert to fraction form
103,795.59/143,088.62 = 73,935.75/x - Step 3: Cross multiply
103,795.59x = 143,088.62 × 73,935.75 - Step 4: Simplify right side
103,795.59x = 10,579,364,066.49 - Step 5: Solve for x
x = 10,579,364,066.49/103,795.59 - Step 6: Final answer
x = 101,924.99
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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.