Finding the Fourth Proportional to 103,446.08, 155,237.16 and 56,731.76
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Solution
The fourth proportional to 103,446.08, 155,237.16 and 56,731.76 is: 85,134.95
Step by Step Solution
- Step 1: Write the proportion equation
103,446.08 : 155,237.16 = 56,731.76 : x - Step 2: Convert to fraction form
103,446.08/155,237.16 = 56,731.76/x - Step 3: Cross multiply
103,446.08x = 155,237.16 × 56,731.76 - Step 4: Simplify right side
103,446.08x = 8,806,877,304.20 - Step 5: Solve for x
x = 8,806,877,304.20/103,446.08 - Step 6: Final answer
x = 85,134.95
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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.