Finding the Fourth Proportional to 103,223.04, 154,817.99 and 28,325.70
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Solution
The fourth proportional to 103,223.04, 154,817.99 and 28,325.70 is: 42,483.99
Step by Step Solution
- Step 1: Write the proportion equation
103,223.04 : 154,817.99 = 28,325.70 : x - Step 2: Convert to fraction form
103,223.04/154,817.99 = 28,325.70/x - Step 3: Cross multiply
103,223.04x = 154,817.99 × 28,325.70 - Step 4: Simplify right side
103,223.04x = 4,385,327,023.62 - Step 5: Solve for x
x = 4,385,327,023.62/103,223.04 - Step 6: Final answer
x = 42,483.99
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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.