Finding the Fourth Proportional to 108,284.64, 149,433.36 and 62,989.44
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Solution
The fourth proportional to 108,284.64, 149,433.36 and 62,989.44 is: 86,925.75
Step by Step Solution
- Step 1: Write the proportion equation
108,284.64 : 149,433.36 = 62,989.44 : x - Step 2: Convert to fraction form
108,284.64/149,433.36 = 62,989.44/x - Step 3: Cross multiply
108,284.64x = 149,433.36 × 62,989.44 - Step 4: Simplify right side
108,284.64x = 9,412,723,663.72 - Step 5: Solve for x
x = 9,412,723,663.72/108,284.64 - Step 6: Final answer
x = 86,925.75
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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.