Finding the Fourth Proportional to 122,154.03, 168,552.95 and 68,441.31
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Solution
The fourth proportional to 122,154.03, 168,552.95 and 68,441.31 is: 94,438.02
Step by Step Solution
- Step 1: Write the proportion equation
122,154.03 : 168,552.95 = 68,441.31 : x - Step 2: Convert to fraction form
122,154.03/168,552.95 = 68,441.31/x - Step 3: Cross multiply
122,154.03x = 168,552.95 × 68,441.31 - Step 4: Simplify right side
122,154.03x = 11,535,984,360.16 - Step 5: Solve for x
x = 11,535,984,360.16/122,154.03 - Step 6: Final answer
x = 94,438.02
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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.