Finding the Fourth Proportional to 142,064.62, 213,155.36 and 104,306.70
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Solution
The fourth proportional to 142,064.62, 213,155.36 and 104,306.70 is: 156,502.95
Step by Step Solution
- Step 1: Write the proportion equation
142,064.62 : 213,155.36 = 104,306.70 : x - Step 2: Convert to fraction form
142,064.62/213,155.36 = 104,306.70/x - Step 3: Cross multiply
142,064.62x = 213,155.36 × 104,306.70 - Step 4: Simplify right side
142,064.62x = 22,233,531,259.20 - Step 5: Solve for x
x = 22,233,531,259.20/142,064.62 - Step 6: Final answer
x = 156,502.95
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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.