Finding the Fourth Proportional to 163,011.13, 224,695.53 and 128,499.62
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Solution
The fourth proportional to 163,011.13, 224,695.53 and 128,499.62 is: 177,124.66
Step by Step Solution
- Step 1: Write the proportion equation
163,011.13 : 224,695.53 = 128,499.62 : x - Step 2: Convert to fraction form
163,011.13/224,695.53 = 128,499.62/x - Step 3: Cross multiply
163,011.13x = 224,695.53 × 128,499.62 - Step 4: Simplify right side
163,011.13x = 28,873,290,220.70 - Step 5: Solve for x
x = 28,873,290,220.70/163,011.13 - Step 6: Final answer
x = 177,124.66
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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.