Finding the Fourth Proportional to 145,970.36, 201,362.60 and 126,807.12
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Solution
The fourth proportional to 145,970.36, 201,362.60 and 126,807.12 is: 174,927.37
Step by Step Solution
- Step 1: Write the proportion equation
145,970.36 : 201,362.60 = 126,807.12 : x - Step 2: Convert to fraction form
145,970.36/201,362.60 = 126,807.12/x - Step 3: Cross multiply
145,970.36x = 201,362.60 × 126,807.12 - Step 4: Simplify right side
145,970.36x = 25,534,211,381.71 - Step 5: Solve for x
x = 25,534,211,381.71/145,970.36 - Step 6: Final answer
x = 174,927.37
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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.