Finding the Fourth Proportional to 130,844.48, 180,570.92 and 74,261.12
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Solution
The fourth proportional to 130,844.48, 180,570.92 and 74,261.12 is: 102,483.49
Step by Step Solution
- Step 1: Write the proportion equation
130,844.48 : 180,570.92 = 74,261.12 : x - Step 2: Convert to fraction form
130,844.48/180,570.92 = 74,261.12/x - Step 3: Cross multiply
130,844.48x = 180,570.92 × 74,261.12 - Step 4: Simplify right side
130,844.48x = 13,409,398,758.63 - Step 5: Solve for x
x = 13,409,398,758.63/130,844.48 - Step 6: Final answer
x = 102,483.49
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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.