Finding the Fourth Proportional to 155,171.70, 232,757.55 and 76,439.70
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Solution
The fourth proportional to 155,171.70, 232,757.55 and 76,439.70 is: 114,659.55
Step by Step Solution
- Step 1: Write the proportion equation
155,171.70 : 232,757.55 = 76,439.70 : x - Step 2: Convert to fraction form
155,171.70/232,757.55 = 76,439.70/x - Step 3: Cross multiply
155,171.70x = 232,757.55 × 76,439.70 - Step 4: Simplify right side
155,171.70x = 17,791,917,294.74 - Step 5: Solve for x
x = 17,791,917,294.74/155,171.70 - Step 6: Final answer
x = 114,659.55
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1.5x scale
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.