Finding the Fourth Proportional to 157,329.99, 235,853.28 and 57,420.08
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Solution
The fourth proportional to 157,329.99, 235,853.28 and 57,420.08 is: 86,078.40
Step by Step Solution
- Step 1: Write the proportion equation
157,329.99 : 235,853.28 = 57,420.08 : x - Step 2: Convert to fraction form
157,329.99/235,853.28 = 57,420.08/x - Step 3: Cross multiply
157,329.99x = 235,853.28 × 57,420.08 - Step 4: Simplify right side
157,329.99x = 13,542,714,205.86 - Step 5: Solve for x
x = 13,542,714,205.86/157,329.99 - Step 6: Final answer
x = 86,078.40
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.