Finding the Fourth Proportional to 141,449.29, 195,196.12 and 77,787.08
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Solution
The fourth proportional to 141,449.29, 195,196.12 and 77,787.08 is: 107,344.02
Step by Step Solution
- Step 1: Write the proportion equation
141,449.29 : 195,196.12 = 77,787.08 : x - Step 2: Convert to fraction form
141,449.29/195,196.12 = 77,787.08/x - Step 3: Cross multiply
141,449.29x = 195,196.12 × 77,787.08 - Step 4: Simplify right side
141,449.29x = 15,183,735,763.67 - Step 5: Solve for x
x = 15,183,735,763.67/141,449.29 - Step 6: Final answer
x = 107,344.02
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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.