Finding the Fourth Proportional to 106,528.97, 147,005.69 and 58,781.70
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Solution
The fourth proportional to 106,528.97, 147,005.69 and 58,781.70 is: 81,116.37
Step by Step Solution
- Step 1: Write the proportion equation
106,528.97 : 147,005.69 = 58,781.70 : x - Step 2: Convert to fraction form
106,528.97/147,005.69 = 58,781.70/x - Step 3: Cross multiply
106,528.97x = 147,005.69 × 58,781.70 - Step 4: Simplify right side
106,528.97x = 8,641,244,073.96 - Step 5: Solve for x
x = 8,641,244,073.96/106,528.97 - Step 6: Final answer
x = 81,116.37
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1.5x scale
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.