Finding the Fourth Proportional to 99,266.70, 148,885.65 and 29,138.70
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Solution
The fourth proportional to 99,266.70, 148,885.65 and 29,138.70 is: 43,703.82
Step by Step Solution
- Step 1: Write the proportion equation
99,266.70 : 148,885.65 = 29,138.70 : x - Step 2: Convert to fraction form
99,266.70/148,885.65 = 29,138.70/x - Step 3: Cross multiply
99,266.70x = 148,885.65 × 29,138.70 - Step 4: Simplify right side
99,266.70x = 4,338,334,289.66 - Step 5: Solve for x
x = 4,338,334,289.66/99,266.70 - Step 6: Final answer
x = 43,703.82
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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.