Finding the Fourth Proportional to 157,342.11, 217,115.54 and 93,671.19
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Solution
The fourth proportional to 157,342.11, 217,115.54 and 93,671.19 is: 129,256.37
Step by Step Solution
- Step 1: Write the proportion equation
157,342.11 : 217,115.54 = 93,671.19 : x - Step 2: Convert to fraction form
157,342.11/217,115.54 = 93,671.19/x - Step 3: Cross multiply
157,342.11x = 217,115.54 × 93,671.19 - Step 4: Simplify right side
157,342.11x = 20,337,470,530.94 - Step 5: Solve for x
x = 20,337,470,530.94/157,342.11 - Step 6: Final answer
x = 129,256.37
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Half scale
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Double scale
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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.