Finding the Fourth Proportional to 143,381.95, 214,652.35 and 100,538.82
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Solution
The fourth proportional to 143,381.95, 214,652.35 and 100,538.82 is: 150,513.32
Step by Step Solution
- Step 1: Write the proportion equation
143,381.95 : 214,652.35 = 100,538.82 : x - Step 2: Convert to fraction form
143,381.95/214,652.35 = 100,538.82/x - Step 3: Cross multiply
143,381.95x = 214,652.35 × 100,538.82 - Step 4: Simplify right side
143,381.95x = 21,580,893,979.23 - Step 5: Solve for x
x = 21,580,893,979.23/143,381.95 - Step 6: Final answer
x = 150,513.32
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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.