Finding the Fourth Proportional to 130,312.64, 195,469.44 and 55,422.08
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Solution
The fourth proportional to 130,312.64, 195,469.44 and 55,422.08 is: 83,133.32
Step by Step Solution
- Step 1: Write the proportion equation
130,312.64 : 195,469.44 = 55,422.08 : x - Step 2: Convert to fraction form
130,312.64/195,469.44 = 55,422.08/x - Step 3: Cross multiply
130,312.64x = 195,469.44 × 55,422.08 - Step 4: Simplify right side
130,312.64x = 10,833,322,941.24 - Step 5: Solve for x
x = 10,833,322,941.24/130,312.64 - Step 6: Final answer
x = 83,133.32
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1.5x scale
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.