Finding the Fourth Proportional to 120,258.93, 165,957.62 and 66,547.63
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Solution
The fourth proportional to 120,258.93, 165,957.62 and 66,547.63 is: 91,835.89
Step by Step Solution
- Step 1: Write the proportion equation
120,258.93 : 165,957.62 = 66,547.63 : x - Step 2: Convert to fraction form
120,258.93/165,957.62 = 66,547.63/x - Step 3: Cross multiply
120,258.93x = 165,957.62 × 66,547.63 - Step 4: Simplify right side
120,258.93x = 11,044,086,291.44 - Step 5: Solve for x
x = 11,044,086,291.44/120,258.93 - Step 6: Final answer
x = 91,835.89
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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.