Finding the Fourth Proportional to 98,985.20, 148,477.80 and 27,907.70
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Solution
The fourth proportional to 98,985.20, 148,477.80 and 27,907.70 is: 41,861.55
Step by Step Solution
- Step 1: Write the proportion equation
98,985.20 : 148,477.80 = 27,907.70 : x - Step 2: Convert to fraction form
98,985.20/148,477.80 = 27,907.70/x - Step 3: Cross multiply
98,985.20x = 148,477.80 × 27,907.70 - Step 4: Simplify right side
98,985.20x = 4,143,673,899.06 - Step 5: Solve for x
x = 4,143,673,899.06/98,985.20 - Step 6: Final answer
x = 41,861.55
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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.