Finding the Fourth Proportional to 141,401.49, 195,135.39 and 77,739.75
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Solution
The fourth proportional to 141,401.49, 195,135.39 and 77,739.75 is: 107,281.59
Step by Step Solution
- Step 1: Write the proportion equation
141,401.49 : 195,135.39 = 77,739.75 : x - Step 2: Convert to fraction form
141,401.49/195,135.39 = 77,739.75/x - Step 3: Cross multiply
141,401.49x = 195,135.39 × 77,739.75 - Step 4: Simplify right side
141,401.49x = 15,169,776,434.75 - Step 5: Solve for x
x = 15,169,776,434.75/141,401.49 - Step 6: Final answer
x = 107,281.59
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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.