Finding the Fourth Proportional to 160,449.18, 221,478.03 and 93,381.18
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Solution
The fourth proportional to 160,449.18, 221,478.03 and 93,381.18 is: 128,899.88
Step by Step Solution
- Step 1: Write the proportion equation
160,449.18 : 221,478.03 = 93,381.18 : x - Step 2: Convert to fraction form
160,449.18/221,478.03 = 93,381.18/x - Step 3: Cross multiply
160,449.18x = 221,478.03 × 93,381.18 - Step 4: Simplify right side
160,449.18x = 20,681,879,785.48 - Step 5: Solve for x
x = 20,681,879,785.48/160,449.18 - Step 6: Final answer
x = 128,899.88
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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.