Finding the Fourth Proportional to 92,197.65, 138,317.28 and 28,161.53
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Solution
The fourth proportional to 92,197.65, 138,317.28 and 28,161.53 is: 42,248.65
Step by Step Solution
- Step 1: Write the proportion equation
92,197.65 : 138,317.28 = 28,161.53 : x - Step 2: Convert to fraction form
92,197.65/138,317.28 = 28,161.53/x - Step 3: Cross multiply
92,197.65x = 138,317.28 × 28,161.53 - Step 4: Simplify right side
92,197.65x = 3,895,226,576.03 - Step 5: Solve for x
x = 3,895,226,576.03/92,197.65 - Step 6: Final answer
x = 42,248.65
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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.