Finding the Fourth Proportional to 106,813.08, 147,475.08 and 66,588.48
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Solution
The fourth proportional to 106,813.08, 147,475.08 and 66,588.48 is: 91,937.63
Step by Step Solution
- Step 1: Write the proportion equation
106,813.08 : 147,475.08 = 66,588.48 : x - Step 2: Convert to fraction form
106,813.08/147,475.08 = 66,588.48/x - Step 3: Cross multiply
106,813.08x = 147,475.08 × 66,588.48 - Step 4: Simplify right side
106,813.08x = 9,820,141,415.08 - Step 5: Solve for x
x = 9,820,141,415.08/106,813.08 - Step 6: Final answer
x = 91,937.63
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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.