Finding the Fourth Proportional to 105,682.83, 158,478.17 and 39,972.75
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Solution
The fourth proportional to 105,682.83, 158,478.17 and 39,972.75 is: 59,941.70
Step by Step Solution
- Step 1: Write the proportion equation
105,682.83 : 158,478.17 = 39,972.75 : x - Step 2: Convert to fraction form
105,682.83/158,478.17 = 39,972.75/x - Step 3: Cross multiply
105,682.83x = 158,478.17 × 39,972.75 - Step 4: Simplify right side
105,682.83x = 6,334,808,070.00 - Step 5: Solve for x
x = 6,334,808,070.00/105,682.83 - Step 6: Final answer
x = 59,941.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.