Finding the Fourth Proportional to 157,117.08, 216,824.94 and 90,049.08
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Solution
The fourth proportional to 157,117.08, 216,824.94 and 90,049.08 is: 124,269.66
Step by Step Solution
- Step 1: Write the proportion equation
157,117.08 : 216,824.94 = 90,049.08 : x - Step 2: Convert to fraction form
157,117.08/216,824.94 = 90,049.08/x - Step 3: Cross multiply
157,117.08x = 216,824.94 × 90,049.08 - Step 4: Simplify right side
157,117.08x = 19,524,886,368.06 - Step 5: Solve for x
x = 19,524,886,368.06/157,117.08 - Step 6: Final answer
x = 124,269.66
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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.