Finding the Fourth Proportional to 157,458.14, 217,226.80 and 92,901.74
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Solution
The fourth proportional to 157,458.14, 217,226.80 and 92,901.74 is: 128,165.80
Step by Step Solution
- Step 1: Write the proportion equation
157,458.14 : 217,226.80 = 92,901.74 : x - Step 2: Convert to fraction form
157,458.14/217,226.80 = 92,901.74/x - Step 3: Cross multiply
157,458.14x = 217,226.80 × 92,901.74 - Step 4: Simplify right side
157,458.14x = 20,180,748,005.44 - Step 5: Solve for x
x = 20,180,748,005.44/157,458.14 - Step 6: Final answer
x = 128,165.80
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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.