Finding the Fourth Proportional to 141,465.13, 195,223.51 and 77,803.99
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Solution
The fourth proportional to 141,465.13, 195,223.51 and 77,803.99 is: 107,370.40
Step by Step Solution
- Step 1: Write the proportion equation
141,465.13 : 195,223.51 = 77,803.99 : x - Step 2: Convert to fraction form
141,465.13/195,223.51 = 77,803.99/x - Step 3: Cross multiply
141,465.13x = 195,223.51 × 77,803.99 - Step 4: Simplify right side
141,465.13x = 15,189,167,825.29 - Step 5: Solve for x
x = 15,189,167,825.29/141,465.13 - Step 6: Final answer
x = 107,370.40
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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.