Finding the Fourth Proportional to 145,849.68, 201,254.40 and 81,303.08
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Solution
The fourth proportional to 145,849.68, 201,254.40 and 81,303.08 is: 112,188.12
Step by Step Solution
- Step 1: Write the proportion equation
145,849.68 : 201,254.40 = 81,303.08 : x - Step 2: Convert to fraction form
145,849.68/201,254.40 = 81,303.08/x - Step 3: Cross multiply
145,849.68x = 201,254.40 × 81,303.08 - Step 4: Simplify right side
145,849.68x = 16,362,601,577.28 - Step 5: Solve for x
x = 16,362,601,577.28/145,849.68 - Step 6: Final answer
x = 112,188.12
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.