Finding the Fourth Proportional to 130,658.69, 195,822.80 and 74,530.53
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Solution
The fourth proportional to 130,658.69, 195,822.80 and 74,530.53 is: 111,701.54
Step by Step Solution
- Step 1: Write the proportion equation
130,658.69 : 195,822.80 = 74,530.53 : x - Step 2: Convert to fraction form
130,658.69/195,822.80 = 74,530.53/x - Step 3: Cross multiply
130,658.69x = 195,822.80 × 74,530.53 - Step 4: Simplify right side
130,658.69x = 14,594,776,697.43 - Step 5: Solve for x
x = 14,594,776,697.43/130,658.69 - Step 6: Final answer
x = 111,701.54
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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.