Finding the Fourth Proportional to 130,435.20, 195,652.80 and 88,963.20
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Solution
The fourth proportional to 130,435.20, 195,652.80 and 88,963.20 is: 133,444.80
Step by Step Solution
- Step 1: Write the proportion equation
130,435.20 : 195,652.80 = 88,963.20 : x - Step 2: Convert to fraction form
130,435.20/195,652.80 = 88,963.20/x - Step 3: Cross multiply
130,435.20x = 195,652.80 × 88,963.20 - Step 4: Simplify right side
130,435.20x = 17,405,899,176.96 - Step 5: Solve for x
x = 17,405,899,176.96/130,435.20 - Step 6: Final answer
x = 133,444.80
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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.