Finding the Fourth Proportional to 134,915.40, 202,421.70 and 130,055.40
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Solution
The fourth proportional to 134,915.40, 202,421.70 and 130,055.40 is: 195,129.95
Step by Step Solution
- Step 1: Write the proportion equation
134,915.40 : 202,421.70 = 130,055.40 : x - Step 2: Convert to fraction form
134,915.40/202,421.70 = 130,055.40/x - Step 3: Cross multiply
134,915.40x = 202,421.70 × 130,055.40 - Step 4: Simplify right side
134,915.40x = 26,326,035,162.18 - Step 5: Solve for x
x = 26,326,035,162.18/134,915.40 - Step 6: Final answer
x = 195,129.95
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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.