Finding the Fourth Proportional to 134,587.60, 185,728.44 and 74,163.82
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Solution
The fourth proportional to 134,587.60, 185,728.44 and 74,163.82 is: 102,344.72
Step by Step Solution
- Step 1: Write the proportion equation
134,587.60 : 185,728.44 = 74,163.82 : x - Step 2: Convert to fraction form
134,587.60/185,728.44 = 74,163.82/x - Step 3: Cross multiply
134,587.60x = 185,728.44 × 74,163.82 - Step 4: Simplify right side
134,587.60x = 13,774,330,593.04 - Step 5: Solve for x
x = 13,774,330,593.04/134,587.60 - Step 6: Final answer
x = 102,344.72
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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.