Finding the Fourth Proportional to 157,194.99, 216,929.10 and 85,574.99
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Solution
The fourth proportional to 157,194.99, 216,929.10 and 85,574.99 is: 118,093.49
Step by Step Solution
- Step 1: Write the proportion equation
157,194.99 : 216,929.10 = 85,574.99 : x - Step 2: Convert to fraction form
157,194.99/216,929.10 = 85,574.99/x - Step 3: Cross multiply
157,194.99x = 216,929.10 × 85,574.99 - Step 4: Simplify right side
157,194.99x = 18,563,704,478.56 - Step 5: Solve for x
x = 18,563,704,478.56/157,194.99 - Step 6: Final answer
x = 118,093.49
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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.