Finding the Fourth Proportional to 122,830.08, 169,503.52 and 69,115.07
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Solution
The fourth proportional to 122,830.08, 169,503.52 and 69,115.07 is: 95,377.68
Step by Step Solution
- Step 1: Write the proportion equation
122,830.08 : 169,503.52 = 69,115.07 : x - Step 2: Convert to fraction form
122,830.08/169,503.52 = 69,115.07/x - Step 3: Cross multiply
122,830.08x = 169,503.52 × 69,115.07 - Step 4: Simplify right side
122,830.08x = 11,715,247,650.05 - Step 5: Solve for x
x = 11,715,247,650.05/122,830.08 - Step 6: Final answer
x = 95,377.68
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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.