Finding the Fourth Proportional to 143,750.10, 215,656.87 and 43,918.08
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Solution
The fourth proportional to 143,750.10, 215,656.87 and 43,918.08 is: 65,886.81
Step by Step Solution
- Step 1: Write the proportion equation
143,750.10 : 215,656.87 = 43,918.08 : x - Step 2: Convert to fraction form
143,750.10/215,656.87 = 43,918.08/x - Step 3: Cross multiply
143,750.10x = 215,656.87 × 43,918.08 - Step 4: Simplify right side
143,750.10x = 9,471,235,118.80 - Step 5: Solve for x
x = 9,471,235,118.80/143,750.10 - Step 6: Final answer
x = 65,886.81
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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.