Finding the Fourth Proportional to 98,119.86, 135,420.84 and 59,887.68
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Solution
The fourth proportional to 98,119.86, 135,420.84 and 59,887.68 is: 82,654.42
Step by Step Solution
- Step 1: Write the proportion equation
98,119.86 : 135,420.84 = 59,887.68 : x - Step 2: Convert to fraction form
98,119.86/135,420.84 = 59,887.68/x - Step 3: Cross multiply
98,119.86x = 135,420.84 × 59,887.68 - Step 4: Simplify right side
98,119.86x = 8,110,039,931.25 - Step 5: Solve for x
x = 8,110,039,931.25/98,119.86 - Step 6: Final answer
x = 82,654.42
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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.