Finding the Fourth Proportional to 130,506.05, 195,786.08 and 74,373.05
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Solution
The fourth proportional to 130,506.05, 195,786.08 and 74,373.05 is: 111,574.96
Step by Step Solution
- Step 1: Write the proportion equation
130,506.05 : 195,786.08 = 74,373.05 : x - Step 2: Convert to fraction form
130,506.05/195,786.08 = 74,373.05/x - Step 3: Cross multiply
130,506.05x = 195,786.08 × 74,373.05 - Step 4: Simplify right side
130,506.05x = 14,561,207,545.28 - Step 5: Solve for x
x = 14,561,207,545.28/130,506.05 - Step 6: Final answer
x = 111,574.96
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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.