Finding the Fourth Proportional to 124,446.24, 171,739.08 and 76,731.12
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Solution
The fourth proportional to 124,446.24, 171,739.08 and 76,731.12 is: 105,890.96
Step by Step Solution
- Step 1: Write the proportion equation
124,446.24 : 171,739.08 = 76,731.12 : x - Step 2: Convert to fraction form
124,446.24/171,739.08 = 76,731.12/x - Step 3: Cross multiply
124,446.24x = 171,739.08 × 76,731.12 - Step 4: Simplify right side
124,446.24x = 13,177,731,956.17 - Step 5: Solve for x
x = 13,177,731,956.17/124,446.24 - Step 6: Final answer
x = 105,890.96
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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.