Finding the Fourth Proportional to 141,423.07, 195,164.58 and 77,764.99
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Solution
The fourth proportional to 141,423.07, 195,164.58 and 77,764.99 is: 107,316.09
Step by Step Solution
- Step 1: Write the proportion equation
141,423.07 : 195,164.58 = 77,764.99 : x - Step 2: Convert to fraction form
141,423.07/195,164.58 = 77,764.99/x - Step 3: Cross multiply
141,423.07x = 195,164.58 × 77,764.99 - Step 4: Simplify right side
141,423.07x = 15,176,971,612.05 - Step 5: Solve for x
x = 15,176,971,612.05/141,423.07 - Step 6: Final answer
x = 107,316.09
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1.5x scale
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.