Finding the Fourth Proportional to 147,962.94, 204,190.35 and 79,981.23
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Solution
The fourth proportional to 147,962.94, 204,190.35 and 79,981.23 is: 110,374.90
Step by Step Solution
- Step 1: Write the proportion equation
147,962.94 : 204,190.35 = 79,981.23 : x - Step 2: Convert to fraction form
147,962.94/204,190.35 = 79,981.23/x - Step 3: Cross multiply
147,962.94x = 204,190.35 × 79,981.23 - Step 4: Simplify right side
147,962.94x = 16,331,395,347.13 - Step 5: Solve for x
x = 16,331,395,347.13/147,962.94 - Step 6: Final answer
x = 110,374.90
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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.