Finding the Fourth Proportional to 157,485.55, 235,816.54 and 86,260.02
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Solution
The fourth proportional to 157,485.55, 235,816.54 and 86,260.02 is: 129,164.48
Step by Step Solution
- Step 1: Write the proportion equation
157,485.55 : 235,816.54 = 86,260.02 : x - Step 2: Convert to fraction form
157,485.55/235,816.54 = 86,260.02/x - Step 3: Cross multiply
157,485.55x = 235,816.54 × 86,260.02 - Step 4: Simplify right side
157,485.55x = 20,341,539,241.08 - Step 5: Solve for x
x = 20,341,539,241.08/157,485.55 - Step 6: Final answer
x = 129,164.48
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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.