Finding the Fourth Proportional to 143,079.18, 214,623.34 and 71,963.00
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Solution
The fourth proportional to 143,079.18, 214,623.34 and 71,963.00 is: 107,946.80
Step by Step Solution
- Step 1: Write the proportion equation
143,079.18 : 214,623.34 = 71,963.00 : x - Step 2: Convert to fraction form
143,079.18/214,623.34 = 71,963.00/x - Step 3: Cross multiply
143,079.18x = 214,623.34 × 71,963.00 - Step 4: Simplify right side
143,079.18x = 15,444,939,773.07 - Step 5: Solve for x
x = 15,444,939,773.07/143,079.18 - Step 6: Final answer
x = 107,946.80
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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.