Finding the Fourth Proportional to 132,977.66, 183,484.10 and 79,267.68
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Solution
The fourth proportional to 132,977.66, 183,484.10 and 79,267.68 is: 109,374.45
Step by Step Solution
- Step 1: Write the proportion equation
132,977.66 : 183,484.10 = 79,267.68 : x - Step 2: Convert to fraction form
132,977.66/183,484.10 = 79,267.68/x - Step 3: Cross multiply
132,977.66x = 183,484.10 × 79,267.68 - Step 4: Simplify right side
132,977.66x = 14,544,358,923.89 - Step 5: Solve for x
x = 14,544,358,923.89/132,977.66 - Step 6: Final answer
x = 109,374.45
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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.