Finding the Fourth Proportional to 157,020.01, 216,681.37 and 85,399.99
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Solution
The fourth proportional to 157,020.01, 216,681.37 and 85,399.99 is: 117,848.59
Step by Step Solution
- Step 1: Write the proportion equation
157,020.01 : 216,681.37 = 85,399.99 : x - Step 2: Convert to fraction form
157,020.01/216,681.37 = 85,399.99/x - Step 3: Cross multiply
157,020.01x = 216,681.37 × 85,399.99 - Step 4: Simplify right side
157,020.01x = 18,504,586,831.19 - Step 5: Solve for x
x = 18,504,586,831.19/157,020.01 - Step 6: Final answer
x = 117,848.59
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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.