Finding the Fourth Proportional to 124,433.44, 171,655.68 and 79,037.36
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Solution
The fourth proportional to 124,433.44, 171,655.68 and 79,037.36 is: 109,031.88
Step by Step Solution
- Step 1: Write the proportion equation
124,433.44 : 171,655.68 = 79,037.36 : x - Step 2: Convert to fraction form
124,433.44/171,655.68 = 79,037.36/x - Step 3: Cross multiply
124,433.44x = 171,655.68 × 79,037.36 - Step 4: Simplify right side
124,433.44x = 13,567,211,776.20 - Step 5: Solve for x
x = 13,567,211,776.20/124,433.44 - Step 6: Final answer
x = 109,031.88
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.