Finding the Fourth Proportional to 143,323.80, 214,985.70 and 125,827.80
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Solution
The fourth proportional to 143,323.80, 214,985.70 and 125,827.80 is: 188,741.70
Step by Step Solution
- Step 1: Write the proportion equation
143,323.80 : 214,985.70 = 125,827.80 : x - Step 2: Convert to fraction form
143,323.80/214,985.70 = 125,827.80/x - Step 3: Cross multiply
143,323.80x = 214,985.70 × 125,827.80 - Step 4: Simplify right side
143,323.80x = 27,051,177,662.46 - Step 5: Solve for x
x = 27,051,177,662.46/143,323.80 - Step 6: Final answer
x = 188,741.70
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1.5x scale
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.