Finding the Fourth Proportional to 128,184.68, 176,898.42 and 70,827.70
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Solution
The fourth proportional to 128,184.68, 176,898.42 and 70,827.70 is: 97,744.19
Step by Step Solution
- Step 1: Write the proportion equation
128,184.68 : 176,898.42 = 70,827.70 : x - Step 2: Convert to fraction form
128,184.68/176,898.42 = 70,827.70/x - Step 3: Cross multiply
128,184.68x = 176,898.42 × 70,827.70 - Step 4: Simplify right side
128,184.68x = 12,529,308,222.23 - Step 5: Solve for x
x = 12,529,308,222.23/128,184.68 - Step 6: Final answer
x = 97,744.19
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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.