Finding the Fourth Proportional to 113,975.36, 157,277.76 and 62,987.48
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Solution
The fourth proportional to 113,975.36, 157,277.76 and 62,987.48 is: 86,918.17
Step by Step Solution
- Step 1: Write the proportion equation
113,975.36 : 157,277.76 = 62,987.48 : x - Step 2: Convert to fraction form
113,975.36/157,277.76 = 62,987.48/x - Step 3: Cross multiply
113,975.36x = 157,277.76 × 62,987.48 - Step 4: Simplify right side
113,975.36x = 9,906,529,762.44 - Step 5: Solve for x
x = 9,906,529,762.44/113,975.36 - Step 6: Final answer
x = 86,918.17
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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.