Finding the Fourth Proportional to 145,710.64, 201,090.98 and 81,184.12
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Solution
The fourth proportional to 145,710.64, 201,090.98 and 81,184.12 is: 112,039.82
Step by Step Solution
- Step 1: Write the proportion equation
145,710.64 : 201,090.98 = 81,184.12 : x - Step 2: Convert to fraction form
145,710.64/201,090.98 = 81,184.12/x - Step 3: Cross multiply
145,710.64x = 201,090.98 × 81,184.12 - Step 4: Simplify right side
145,710.64x = 16,325,393,342.59 - Step 5: Solve for x
x = 16,325,393,342.59/145,710.64 - Step 6: Final answer
x = 112,039.82
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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.