Finding the Fourth Proportional to 135,970.16, 203,934.14 and 69,459.44
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Solution
The fourth proportional to 135,970.16, 203,934.14 and 69,459.44 is: 104,178.38
Step by Step Solution
- Step 1: Write the proportion equation
135,970.16 : 203,934.14 = 69,459.44 : x - Step 2: Convert to fraction form
135,970.16/203,934.14 = 69,459.44/x - Step 3: Cross multiply
135,970.16x = 203,934.14 × 69,459.44 - Step 4: Simplify right side
135,970.16x = 14,165,151,161.28 - Step 5: Solve for x
x = 14,165,151,161.28/135,970.16 - Step 6: Final answer
x = 104,178.38
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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.