Finding the Fourth Proportional to 121,741.08, 168,009.18 and 68,027.40
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Solution
The fourth proportional to 121,741.08, 168,009.18 and 68,027.40 is: 93,881.44
Step by Step Solution
- Step 1: Write the proportion equation
121,741.08 : 168,009.18 = 68,027.40 : x - Step 2: Convert to fraction form
121,741.08/168,009.18 = 68,027.40/x - Step 3: Cross multiply
121,741.08x = 168,009.18 × 68,027.40 - Step 4: Simplify right side
121,741.08x = 11,429,227,691.53 - Step 5: Solve for x
x = 11,429,227,691.53/121,741.08 - Step 6: Final answer
x = 93,881.44
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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.