Finding the Fourth Proportional to 145,809.92, 218,799.93 and 79,257.08
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Solution
The fourth proportional to 145,809.92, 218,799.93 and 79,257.08 is: 118,931.85
Step by Step Solution
- Step 1: Write the proportion equation
145,809.92 : 218,799.93 = 79,257.08 : x - Step 2: Convert to fraction form
145,809.92/218,799.93 = 79,257.08/x - Step 3: Cross multiply
145,809.92x = 218,799.93 × 79,257.08 - Step 4: Simplify right side
145,809.92x = 17,341,444,400.22 - Step 5: Solve for x
x = 17,341,444,400.22/145,809.92 - Step 6: Final answer
x = 118,931.85
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.