Finding the Fourth Proportional to 95,415.20, 143,122.80 and 59,985.80
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Solution
The fourth proportional to 95,415.20, 143,122.80 and 59,985.80 is: 89,978.70
Step by Step Solution
- Step 1: Write the proportion equation
95,415.20 : 143,122.80 = 59,985.80 : x - Step 2: Convert to fraction form
95,415.20/143,122.80 = 59,985.80/x - Step 3: Cross multiply
95,415.20x = 143,122.80 × 59,985.80 - Step 4: Simplify right side
95,415.20x = 8,585,335,656.24 - Step 5: Solve for x
x = 8,585,335,656.24/95,415.20 - Step 6: Final answer
x = 89,978.70
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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.