Finding the Fourth Proportional to 120,177.84, 180,252.99 and 31,439.91
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Solution
The fourth proportional to 120,177.84, 180,252.99 and 31,439.91 is: 47,156.26
Step by Step Solution
- Step 1: Write the proportion equation
120,177.84 : 180,252.99 = 31,439.91 : x - Step 2: Convert to fraction form
120,177.84/180,252.99 = 31,439.91/x - Step 3: Cross multiply
120,177.84x = 180,252.99 × 31,439.91 - Step 4: Simplify right side
120,177.84x = 5,667,137,782.83 - Step 5: Solve for x
x = 5,667,137,782.83/120,177.84 - Step 6: Final answer
x = 47,156.26
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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.