Finding the Fourth Proportional to 136,820.40, 205,251.12 and 48,058.26
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Solution
The fourth proportional to 136,820.40, 205,251.12 and 48,058.26 is: 72,094.60
Step by Step Solution
- Step 1: Write the proportion equation
136,820.40 : 205,251.12 = 48,058.26 : x - Step 2: Convert to fraction form
136,820.40/205,251.12 = 48,058.26/x - Step 3: Cross multiply
136,820.40x = 205,251.12 × 48,058.26 - Step 4: Simplify right side
136,820.40x = 9,864,011,690.25 - Step 5: Solve for x
x = 9,864,011,690.25/136,820.40 - Step 6: Final answer
x = 72,094.60
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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.