Finding the Fourth Proportional to 98,335.21, 135,702.30 and 55,901.92
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Solution
The fourth proportional to 98,335.21, 135,702.30 and 55,901.92 is: 77,144.48
Step by Step Solution
- Step 1: Write the proportion equation
98,335.21 : 135,702.30 = 55,901.92 : x - Step 2: Convert to fraction form
98,335.21/135,702.30 = 55,901.92/x - Step 3: Cross multiply
98,335.21x = 135,702.30 × 55,901.92 - Step 4: Simplify right side
98,335.21x = 7,586,019,118.42 - Step 5: Solve for x
x = 7,586,019,118.42/98,335.21 - Step 6: Final answer
x = 77,144.48
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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.