Finding the Fourth Proportional to 135,298.11, 202,753.05 and 76,009.05
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Solution
The fourth proportional to 135,298.11, 202,753.05 and 76,009.05 is: 113,904.52
Step by Step Solution
- Step 1: Write the proportion equation
135,298.11 : 202,753.05 = 76,009.05 : x - Step 2: Convert to fraction form
135,298.11/202,753.05 = 76,009.05/x - Step 3: Cross multiply
135,298.11x = 202,753.05 × 76,009.05 - Step 4: Simplify right side
135,298.11x = 15,411,066,715.10 - Step 5: Solve for x
x = 15,411,066,715.10/135,298.11 - Step 6: Final answer
x = 113,904.52
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.