Finding the Fourth Proportional to 122,526.18, 168,961.68 and 115,382.70
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Solution
The fourth proportional to 122,526.18, 168,961.68 and 115,382.70 is: 159,110.93
Step by Step Solution
- Step 1: Write the proportion equation
122,526.18 : 168,961.68 = 115,382.70 : x - Step 2: Convert to fraction form
122,526.18/168,961.68 = 115,382.70/x - Step 3: Cross multiply
122,526.18x = 168,961.68 × 115,382.70 - Step 4: Simplify right side
122,526.18x = 19,495,254,834.94 - Step 5: Solve for x
x = 19,495,254,834.94/122,526.18 - Step 6: Final answer
x = 159,110.93
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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.