Finding the Fourth Proportional to 147,356.95, 221,121.19 and 61,961.63
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Solution
The fourth proportional to 147,356.95, 221,121.19 and 61,961.63 is: 92,978.52
Step by Step Solution
- Step 1: Write the proportion equation
147,356.95 : 221,121.19 = 61,961.63 : x - Step 2: Convert to fraction form
147,356.95/221,121.19 = 61,961.63/x - Step 3: Cross multiply
147,356.95x = 221,121.19 × 61,961.63 - Step 4: Simplify right side
147,356.95x = 13,701,030,302.66 - Step 5: Solve for x
x = 13,701,030,302.66/147,356.95 - Step 6: Final answer
x = 92,978.52
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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.