Finding the Fourth Proportional to 99,823.60, 149,735.40 and 40,701.70
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Solution
The fourth proportional to 99,823.60, 149,735.40 and 40,701.70 is: 61,052.55
Step by Step Solution
- Step 1: Write the proportion equation
99,823.60 : 149,735.40 = 40,701.70 : x - Step 2: Convert to fraction form
99,823.60/149,735.40 = 40,701.70/x - Step 3: Cross multiply
99,823.60x = 149,735.40 × 40,701.70 - Step 4: Simplify right side
99,823.60x = 6,094,485,330.18 - Step 5: Solve for x
x = 6,094,485,330.18/99,823.60 - Step 6: Final answer
x = 61,052.55
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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.