Finding the Fourth Proportional to 130,631.95, 196,015.35 and 55,731.99
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Solution
The fourth proportional to 130,631.95, 196,015.35 and 55,731.99 is: 83,626.75
Step by Step Solution
- Step 1: Write the proportion equation
130,631.95 : 196,015.35 = 55,731.99 : x - Step 2: Convert to fraction form
130,631.95/196,015.35 = 55,731.99/x - Step 3: Cross multiply
130,631.95x = 196,015.35 × 55,731.99 - Step 4: Simplify right side
130,631.95x = 10,924,325,526.05 - Step 5: Solve for x
x = 10,924,325,526.05/130,631.95 - Step 6: Final answer
x = 83,626.75
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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.