Finding the Fourth Proportional to 122,484.18, 168,903.72 and 115,340.70
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Solution
The fourth proportional to 122,484.18, 168,903.72 and 115,340.70 is: 159,052.98
Step by Step Solution
- Step 1: Write the proportion equation
122,484.18 : 168,903.72 = 115,340.70 : x - Step 2: Convert to fraction form
122,484.18/168,903.72 = 115,340.70/x - Step 3: Cross multiply
122,484.18x = 168,903.72 × 115,340.70 - Step 4: Simplify right side
122,484.18x = 19,481,473,297.40 - Step 5: Solve for x
x = 19,481,473,297.40/122,484.18 - Step 6: Final answer
x = 159,052.98
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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.