Finding the Fourth Proportional to 135,917.84, 187,346.76 and 101,403.92
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Solution
The fourth proportional to 135,917.84, 187,346.76 and 101,403.92 is: 139,773.38
Step by Step Solution
- Step 1: Write the proportion equation
135,917.84 : 187,346.76 = 101,403.92 : x - Step 2: Convert to fraction form
135,917.84/187,346.76 = 101,403.92/x - Step 3: Cross multiply
135,917.84x = 187,346.76 × 101,403.92 - Step 4: Simplify right side
135,917.84x = 18,997,695,863.30 - Step 5: Solve for x
x = 18,997,695,863.30/135,917.84 - Step 6: Final answer
x = 139,773.38
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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.