Finding the Fourth Proportional to 134,966.64, 186,133.44 and 87,169.68
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Solution
The fourth proportional to 134,966.64, 186,133.44 and 87,169.68 is: 120,216.32
Step by Step Solution
- Step 1: Write the proportion equation
134,966.64 : 186,133.44 = 87,169.68 : x - Step 2: Convert to fraction form
134,966.64/186,133.44 = 87,169.68/x - Step 3: Cross multiply
134,966.64x = 186,133.44 × 87,169.68 - Step 4: Simplify right side
134,966.64x = 16,225,192,402.10 - Step 5: Solve for x
x = 16,225,192,402.10/134,966.64 - Step 6: Final answer
x = 120,216.32
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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.